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# Agvise Laboratories

Soil Testing & Laboratory Services

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## Posts

- [Subject Library](https://www.agvise.com/resources/educational-articles/all-articles/)
- [Soil sampling on drown-out, unplanted, and Prevented Planting acres](https://www.agvise.com/soil-sampling-on-drown-out-unplanted-and-prevented-planting-acres/) - Across the northern Great Plains and Canadian Prairies, weather patterns have ranged from too dry to too wet. For the too wet parts, excessive spring and summer rainfall has resulted in extensive stretches of unplanted (Prevented Planting) acres or drown-out acres. As people think about the fall soil sampling season ahead, we are starting to
- [Soil Testing Behind the Combine](https://www.agvise.com/soil-testing-behind-the-combine/) - As harvest gets underway, savvy soil samplers are following right behind the combine and starting to collect soil samples. These soil samplers understand the many reasons why taking soil samples right behind the combine gives them the best quality soil samples and data. In the past, the reasoning to wait until later in the fall
- [Sampling Fields for Soybean Cyst Nematode (SCN)](https://www.agvise.com/sampling-fields-for-scn/) - Soybean cyst nematode (SCN) is a microscopic parasitic worm that attacks the roots of susceptible soybean and dry edible bean, causing unseen or unexplained yield losses. Soybean and dry edible bean are naturally susceptible to SCN, but through plant breeding, most soybeans have some level of resistance, varying in level from good to poor. The
- [Feed Nitrate Testing in Drought Years](https://www.agvise.com/feed-nitrate-testing-in-a-drought-year/) - Drought is an unwelcome but well-known phenomenon on the Great Plains and Canadian Prairies. Sparse and scattered rainfall and above-average temperatures can cause significant stress in small grains and other crops. The same conditions also wrack pastures, prompting livestock producers to think about alternative feed options. As producers consider what to do with drought-stressed crops,
- [USDA-NRCS CEMA 216: A Cost-sharing Program for Soil Health Testing](https://www.agvise.com/usda-nrcs-cema-216-a-cost-sharing-program-for-soil-health-testing/) - Soil health assessment includes more than traditional soil fertility analysis. Soil health encompasses physical, chemical, and biological soil properties, which all come together to provide a healthy, living soil for optimal plant growth. Traditional soil fertility analysis, supported with university research, is still the approved practice for assessing plant nutrient requirements and determining fertilizer rates.
- [Is PI88788 Working in Your Soybean Fields?](https://www.agvise.com/is-pi-88788-working-in-your-soybean-fields/) - Soybean Cyst Nematode (SCN) is the number one crop yield-reducing pest in soybean production. Potential crop yield loss to SCN is expected to rise as more and more populations of SCN overcome the PI88788 resistance source. The Peking resistance source is not as common as the PI88788, but it is becoming incorporated into more soybean
- [AGVISE Laboratories: Trusted by University and Industry Researchers](https://www.agvise.com/agvise-laboratories-trusted-by-university-and-industry-researchers/) - While you may know AGVISE Laboratories for the soil and plant analysis services we provide you and your producers, AGVISE also has a long history of supporting university and industry research. For the past 30 years, many university-operated soil testing laboratories have closed in the region. This has left a gap in the on- and
- [Quality Control is First Priority for AGVISE](https://www.agvise.com/quality-control-is-first-priority-for-agvise/) - When you receive a soil test report from AGVISE you should expect the best. Since our start in 1976, our first priority has been providing you with the most accurate soil test data. Ensuring proper quality control and quality assurance (QC/QA) takes extra care and dedication from everyone at AGVISE to provide you with the
- [Sidedress Nitrogen for Corn Using the Pre-Sidedress Soil Nitrate Test (PSNT)](https://www.agvise.com/sidedress-corn-using-the-pre-sidedress-soil-nitrate-test-psnt/) - As the corn crop begins to emerge, it is time to prepare for sidedress nitrogen applications. Sidedress nitrogen for corn can be applied any time after planting, but the target application window is generally between growth stages V4 and V8 before rapid plant nitrogen uptake occurs. Split nitrogen applications have become a standard practice in
- [Troubleshooting Problems with Plant Analysis](https://www.agvise.com/troubleshooting-problems-with-plant-analysis/) - A green growing crop is a delightful sight, and it is used by many people as an indicator of crop nutrient status. If you have fields with some yellow areas or slow growth, these symptoms may indicate a nutrient deficiency. Most commonly, yellow-looking plants may be deficient in nitrogen, sulfur, or both. If detected early,
- [2021 Plant Nutrient Deficiency Troubleshooting Project](https://www.agvise.com/2021-plant-nutrient-deficiency-troubleshooting-project/) - Plant analysis is a valuable tool for managing plant nutrients and troubleshooting agronomic problems. Being certain that a specific plant nutrient is causing deficiency symptoms is difficult with visual symptoms alone. Many causal agents unrelated to soil fertility can cause symptoms that appear to be nutrient-related. There are also some plant nutrient deficiencies that are impossible
- [Early Summer Grid Soil Sampling](https://www.agvise.com/early-summer-grid-soil-sampling/) - The interest in early summer topsoil grid sampling (1.0- to 2.5-acres per grid) continues to increase, especially in traditional corn-soybean growing areas. In Minnesota alone, 30-40% of all grid soil samples are now collected in the summer months. The early summer period (late May to late June) is an excellent period of time to collect
- [How Much AMS Does Your Spray Water Need?](https://www.agvise.com/how-much-does-ams-does-your-spray-water-need/) - Hard water is common issue for many water sources across the upper Midwest, Great Plains, and Canadian Prairies. It is why our homes have water softeners, why our well water tastes funny (or delicious), and one reason we need to add AMS (ammonium sulfate) or UAN to spray tanks to optimize weed control. When we talk about conditioning
- [Protecting Spring-Applied Nitrogen Fertilizer from Ammonia Volatilization](https://www.agvise.com/protecting-spring-applied-nitrogen-fertilizer-from-ammonia-volatilization/) - As the spring planting season gets underway, agronomists and farmers are asking about the best ways to protect spring-applied nitrogen. How much nitrogen might I lose if I cannot incorporate it? Does vertical tillage incorporate fertilizer enough? We have compiled some resources to help answer those questions. There are three ways to lose nitrogen fertilizer:
- [Switching More Acres to Soybean?](https://www.agvise.com/switching-more-acres-to-soybean/) - The spike in nitrogen fertilizer prices over the past month has prompted many growers to think about switching more acres to soybean in 2026. The high nitrogen fertilizer prices are squeezing the potential profitability of any crop requiring nitrogen fertilizer, such as corn, dry bean, canola, or wheat. The symbiotic nitrogen fixing behavior of soybean
- [Starter Fertilizer: Choosing the Right Seed-Safe Rate](https://www.agvise.com/starter-fertilizer-choosing-the-right-rate/) - Starter fertilizer placed with or near the seed is essential for vigorous early season growth in grass crops such as corn and wheat. We plant these crops early because we know vigorous early season growth is important to achieving high crop yields. Early planting also means cold soils, and starter fertilizer is necessary to get
- [Soybean Cyst Nematode (SCN) Egg Numbers Continue to Increase](https://www.agvise.com/soybean-cyst-nematode-scn-egg-numbers-continue-to-increase/) - This article originally appeared in the AGVISE Laboratories Spring 2024 Newsletter. Over the winter months, we received a lot of questions about the increasing soybean cyst nematode (SCN) egg count trends across the region. Soybean cyst nematode is the most damaging soybean pest in the United States, and the problem is becoming worse. The AGVISE
- [Phosphorus Fertilizer Forms: Orthophosphate or Polyphosphate (Ortho-P or Poly-P)](https://www.agvise.com/phosphorus-fertilizer-forms-orthophosphate-or-polyphosphate-ortho-p-or-poly-p/) - This article originally appeared in the AGVISE Laboratories Spring 2024 Newsletter. Each spring, we get questions about what form of phosphate fertilizer is better. The debate over orthophosphate and polyphosphate has raged for decades. Just when we think we have put the issue to bed, it comes up again! These questions originate from the simple
- [Adjusting high soil pH with elemental sulfur](https://www.agvise.com/adjusting-high-soil-ph-with-elemental-sulfur/) - Soil pH is a soil chemical property that measures soil acidity or alkalinity, and it affects many soil chemical and biological activities. Soils with high pH can reduce the availability of certain nutrients, such as phosphorus and zinc. Soils of the northern Great Plains and Canadian Prairies often have high soil pH (>7.3) and contain
- [High soil pH and calcium carbonate inflate base cation saturation and cation exchange capacity (CEC)](https://www.agvise.com/high-soil-ph-and-calcium-carbonate-inflate-base-cation-saturation-and-cation-exchange-capacity-cec/) - Soil pH is a soil chemical property that measures soil acidity or alkalinity, and it affects many soil chemical and biological activities. Soils of the northern Great Plains and Canadian Prairies often have high soil pH (>7.3) and contain calcium carbonate (free lime) at or near the soil surface. It is the calcium carbonate in
- [Adjusting low soil pH with sugar beet-processing spent lime](https://www.agvise.com/adjusting-low-soil-ph-with-sugar-beet-processing-spent-lime/) - The sugar beet processing industry uses large quantities of fine-ground, high-grade calcium carbonate (lime) to purify sucrose in the sugar extraction process. The by-product spent lime retains high reactivity and purity, making an attractive liming material for acidic soils. Application of spent lime is a common practice through the sugar beet producing areas of the
- [Adjusting high soil pH and salinity with sugar beet-processing spent lime](https://www.agvise.com/adjusting-high-soil-ph-and-salinity-with-sugar-beet-processing-spent-lime/) - The sugar beet processing industry uses large quantities of fine-ground, high-grade calcium carbonate (lime) to purify sucrose in the sugar extraction process. The by-product spent lime retains high reactivity and purity, making it an attractive liming material for acidic soils. Application of spent lime is a common practice through the sugar beet producing areas of
- [Lessons (Ghosts) of Droughts Past](https://www.agvise.com/lessons-ghosts-of-droughts-past/) - From Alberta to Iowa, the region has experienced everything from abnormally dry soil conditions to exceptional drought. In some places, the drought started in 2020 and has continued through 2021. Considering lower than expected crop yields, we expect that residual soil nitrate-nitrogen levels will be much higher than normal in many wheat, canola, and corn
- [Tips for Soil Sampling in Dry Conditions](https://www.agvise.com/tips-for-soil-sampling-in-dry-conditions/) - Soil sampling in dry conditions can be difficult. The ground is hard, fields are dry, and getting a consistent soil core depth can take more time than usual. To help you take the best soil samples this fall, we’ve put together some tips and tricks for sampling in dry soil conditions that, when implemented, will help
- [Brent Jaenisch Joins AGVISE Technical Support Team](https://www.agvise.com/brent-jaenisch-joins-agvise-technical-support-team/) - AGVISE Laboratories is proud to announce that Brent Jaenisch has joined the AGVISE team as an Agronomist. Brent provides sales and technical support to AGVISE customers throughout Minnesota, South Dakota, and the northern Corn Belt. You will soon see his contributions in AGVISE newsletters and seminars. Brent is based at the Benson, MN laboratory. Brent
- [Soil Nitrogen Trends - Fall 2021; High Variability Following Drought](https://www.agvise.com/updated-residual-soil-nitrate-trends-variability-is-high-this-year/) - This article was originally published following the 2021 drought. The 2022 growing season may seem like a long way off, but spring will be here before we know it. In fact, many growers are already making (or have made) crop choices and seed variety decisions for 2022. One factor that must be considered when making
- [Probe stuck in the ground? Don't let it wreck your day.](https://www.agvise.com/probe-stuck-in-the-ground-dont-let-it-wreck-your-day/) - If you have ever had a soil probe come off while in the ground, you have experienced a rare but stressful event! A customer recently called with this situation and a success story about how he recovered the soil probe “MacGyver” style. I think his solution involved barb wire, duct tape and some chewing gum.
- [Soil Sensors: Helpful Gadgets or Hapless Gimmicks?](https://www.agvise.com/soil-sensors-helpful-gadgets-or-hapless-gimmicks/) - This article originally appeared in the AGVISE Laboratories Winter 2024 Newsletter. A number of new handheld sensors have hit the market, claiming to accurately and precisely measure soil nutrient content in the field, similar to traditional wet chemistry analysis at a soil testing laboratory. The draw for any person soil sampling is the ability to
- [Lime Works: The Results Are In](https://www.agvise.com/the-results-are-in-lime-works/) - This article was originally published in the AGVISE Laboratories Winter 2023 Newsletter. In the fall of 2022, I hired a custom applicator to haul and spread lime across 238 acres of my family's farm in western North Dakota. The reason? To increase soil pH on five fields with very low soil pH. One field even
- [Molybdenum: The Micro-est of Micronutrients](https://www.agvise.com/molybdenum-the-micro-est-of-micronutrients/) - Molybdenum (Mo) is an essential plant nutrient, necessary for nitrate assimilation and biological nitrogen fixation. Legumes, relying on symbiotic nitrogen fixation, have greater Mo requirement than non-legumes. Nevertheless, the Mo requirement of plants is the lowest among all micronutrients, with critical deficiency concentrations ranging from 0.1 to 1.0 ppm in plant leaves. The very low
- [Soil Nitrogen Trends - Fall 2023: Some Up, Some Down](https://www.agvise.com/soil-nitrogen-trends-fall-2023-some-up-some-down/) - The 2023 drought was an all-too-soon reminder of the widespread 2021 drought. It covered much of the upper Midwest, Great Plains, and Canadian Prairies. From previous experience with droughts, we expected that residual soil nitrate-N following crops would be higher than normal, caused by the drought and reduced crop yields. The first wheat fields that
- [Fall-applied Nitrogen Fertilizer: A Couple Simple Rules](https://www.agvise.com/fall-applied-nitrogen-fertilizer-a-couple-simple-rules-2/) - This article is shared annually to help answer frequently asked questions about nitrogen fertilizer applications and nitrogen losses in the fall. October is here, and many people are preparing for fall nitrogen fertilizer applications. Before you hit the field, we want to share these important reminders about fall nitrogen application timing and placement to help
- [2021 Drought: High residual soil nitrate-nitrogen across the region](https://www.agvise.com/2021-drought-high-residual-soil-nitrate-nitrogen-across-the-region/) - This article originally appeared in the AGVISE Laboratories Winter 2022 Newsletter. The 2021 drought rivals the 1988 drought, and it covered much of the northern Great Plains and Canadian Prairies. From previous experience with droughts, we expected that residual soil nitrate-N following crops would be higher than normal, caused by the drought and reduced crop
- [Corn Stalk Nitrate Test](https://www.agvise.com/corn-stalk-nitrate-test/) - To help evaluate nitrogen management in corn, you may want to try the corn stalk nitrate test as a post-mortem tool. The corn stalk nitrate test is a late-season or end-of-season plant analysis on mature corn stalks. Iowa State University developed the corn stalk sampling protocol and interpretation. If corn did not have sufficient nitrogen,
- [Sodic Soil Problems? Try the NDSU Gypsum Requirement Calculator](https://www.agvise.com/sodic-soil-problems-try-the-ndsu-gypsum-requirement-calculator/) - This article originally appeared in the AGVISE Laboratories Spring 2025 Newsletter. Salinity and sodicity are two related but distinct terms to describe salt-affected soils. Salinity is the overall abundance of soluble salts, which compete with plant water uptake and reduce crop productivity. Salinity is measured as soluble salts (mmhos/cm or dS/m) on soil test reports.
- [AGVISE Demonstration Project: Lowering Soil pH with Elemental Sulfur](https://www.agvise.com/agvise-demonstration-project-lowering-soil-ph-with-elemental-sulfur/) - This article originally appeared in the AGVISE Laboratories Spring 2025 Newsletter. There may not be silly questions, but there are silly answers. Every so often, we get questions about unusual solutions to manage calcareous soils in the northern Great Plains and Canadian Prairies. The most frequent oddball “solutions” involve lowering soil pH with elemental sulfur
- [Start Strong, Finish Strong with Starter Phosphorus](https://www.agvise.com/start-strong-finish-strong-with-starter-phosphorus/) - This article originally appeared in the AGVISE Laboratories Spring 2025 Newsletter. Cool and wet soil conditions can limit root growth and phosphorus uptake during the early growing growing season. This is why starter phosphorus placed with or near the seed can be so effective in enhancing early plant growth and development. In small grains, starter
- [Sticky Wet Soils? Try Adding a WD-40 Holster](https://www.agvise.com/sticky-wet-soils-try-adding-a-wd-40-holster/) - This article originally appeared in the AGVISE Laboratories Fall 2024 Newsletter. Do you have challenges collecting good quality soil cores in sticky wet soils? You are not the only one! WD-40 has been the soil probe lubricant of choice for over 30 years to help obtain better quality soil samples. University researchers have also tested
- [Zone Soil Sampling: How Many Zones?](https://www.agvise.com/zone-soil-sampling-how-many-zones/) - Zone soil sampling has become a standard practice in precision nutrient management, but the grand question remains - How many zones should you be soil sampling? Well, it depends! It just makes sense that a field with more variability requires more zones than a field with little variability. Zone soil sampling separates parts of fields
- [Winter Soil Sampling: You Need the Right Tools](https://www.agvise.com/winter-soil-sampling-you-need-the-right-tools/) - Snowfall in late October and November slowed harvest and soil sampling across the region. This means some fields will be soil sampled in December and maybe January as harvest for late-season crops continues in the snow. The right equipment is the key to any project, and winter soil sampling is no different. AGVISE heavy-duty (HD)
- [Preparing for Spring Soil Sampling](https://www.agvise.com/preparing-for-spring-soil-sampling/) - Even when fall soil sampling weather cooperates, there is always some soil sampling to do each spring. No matter the spring conditions, the soil sampling window is tight if you are planning to collect soil samples and get the soil test results back in time for spring fertilizer decisions. You will want to pull soil
- [Sampling Depth: Be consistent!](https://www.agvise.com/sampling-depth-be-consistent/) - This article originally appeared in the AGVISE Laboratories Fall 2022 Newsletter Soil test results are only as reliable as the soil samples collected in the field. A crucial part of soil sample quality is consistent sampling depth. This is important because all the soil test calibration research and fertilizer guidelines for non-mobile nutrients (e.g., phosphorus,
- [Are Soybean Iron Deficiency Chlorosis (IDC) Ratings Getting Worse?](https://www.agvise.com/are-soybean-iron-deficiency-chlorosis-idc-ratings-getting-worse/) - This article originally appeared in the AGVISE Laboratories Spring 2023 Newsletter For the past three years, we have seen severe and widespread soybean iron deficiency chlorosis (IDC) symptoms across the region. In fact, some seasoned agronomists have commented that 2022 was the worst soybean IDC year that they had experienced in decades. Soybean IDC is
- [Choosing the Right Phosphorus Method](https://www.agvise.com/choosing-the-right-phosphorus-method/) - This article originally appeared in the AGVISE Laboratories Spring 2023 Newsletter under President's Corner The phosphorus soil test debate never ends. Should I use the Olsen test, or maybe Bray-1 would be better? What about the Mehlich-3 method, and should that extract be analyzed on an ICP or with a colorimetric method? Perhaps, Bray-2 or
- [Two Graphics You Should Know Before the 2023 Growing Season](https://www.agvise.com/two-graphics-you-should-know-before-the-2023-growing-season/) - This article originally appeared in the AGVISE Laboratories Spring 2023 Newsletter The goal of AGVISE Newsletters is to inform you and your customers of important soil fertility information relevant to our area. Often, visuals or graphs are much more powerful at communicating a message than words. With that in mind, I want to share two
- [John Breker Appointed to NAPT Oversight Committee](https://www.agvise.com/john-breker-appointed-to-napt-oversight-committee/) - This article originally appeared in the AGVISE Laboratories Spring 2023 Newsletter John Breker was appointed to the North American Proficiency Testing Program Oversight Committee as the North Central Region representative, starting in January 2023. The North American Proficiency Testing (NAPT) Program assists soil, plant, and water laboratories with quality control and quality assurance through inter-laboratory
- [High Fertilizer Prices? Using Crop Removal P & K Rates is an Expensive Choice](https://www.agvise.com/high-fertilizer-prices-using-crop-removal-p-k-rates-is-an-expensive-choice/) - This article originally appeared in the AGVISE Laboratories Spring 2023 Newsletter If you thought high fertilizer prices would resolve after one or two years, it is looking like those prices are becoming the new norm. At such prices, every fertilizer dollar you spend must be spent to guarantee the best bang for each buck. This
- [Early Soil Nitrate Trends after Wheat in 2022](https://www.agvise.com/early-soil-nitrate-trends-after-wheat-in-2022/) - Small grain harvest is well underway across the region, and soil testing is progressing quickly. Crop yields have varied from below average to exceeding expectations across the region and often in the same area. Planting date, summer temperatures, and rainfall (too little or too much) were major factors this year. The major factors influencing the
- [Corn Growth and Development - Are we behind?](https://www.agvise.com/corn-growth-and-development-are-we-behind/) - This article originally appeared in the AGVISE Laboratories Fall 2022 Newsletter under Southern Trends The spring and early summer were very interesting to say the least. Spring rains continued well into late May and delayed planting for sugar beet, corn, and soybean throughout the southern region. By mid-May, many producers changed long-day corn maturities to
- [Prevented Planting Acres? What to do for 2023](https://www.agvise.com/prevented-planting-acres-what-to-do-for-2023/) - This article originally appeared in the AGVISE Laboratories Fall 2022 NewsletterGood crop prices encouraged late planting beyond crop insurance deadlines, but additional June rainfall kept some producers from planting all their acres, leaving some unplanted fields or unplanted parts of fields. There are many questions about soil testing on these unplanted fields: When should you
- [Plant Sampling Basics - Sampling, storing, and shipping plant samples](https://www.agvise.com/plant-sampling-basics-sampling-storing-and-shipping-plant-samples/) - Plant sampling season is in full swing. Agronomists submit plant samples for analysis for a number of reasons: to confirm visible nutrient deficiency symptoms, to detect “hidden hungers”, and to monitor or fine-tune fertilizer plans. For whatever reason you plan to take plant samples, here is a quick refresher on sampling, storing, and shipping plant samples to AGVISE Laboratories. Sampling
- [Soil Sampling for Nitrogen in a Delayed Spring](https://www.agvise.com/soil-sampling-for-nitrogen-in-a-delayed-spring/) - Spring planting is clipping along in some parts of the region, while other parts are still waiting to hit the field, as excessive rainfall and cold temperatures have delayed spring field work and planting. Who would have thought last fall that this is what spring 2022 would look like, after the worst region-wide drought in
- [Split the Risk with In-season Nitrogen](https://www.agvise.com/split-the-risk-with-in-season-nitrogen/) - For some farmers, applying fertilizer in the fall is a standard practice. You can often take advantage of lower fertilizer prices, reduce the spring workload, and guarantee that fertilizer is applied before planting. As you work on developing your crop nutrition plan, you may want to consider saving a portion of the nitrogen budget for
- [Soil Science Review: Cation Exchange Capacity](https://www.agvise.com/soil-science-review-cation-exchange-capacity/) - Each year, AGVISE Laboratories delivers thousands of soil characterization reports with something printed on them called, “Cation Exchange Capacity (CEC).” Unless you have some background in soil science or surface chemistry, the number might be a mystery to you. Cation exchange capacity is the amount of positive-charged cations (e.g. ammonium, calcium, hydrogen, magnesium, potassium, sodium)
- [Zone Soil Sampling and Variable Rate Fertilization: Optimizing profits](https://www.agvise.com/zone-soil-sampling-and-variable-rate-fertilization-optimizing-profits/) - This article originally appeared in the AGVISE Laboratories Winter 2022 Newsletter Farmers, like all business owners, are profit maximizers: things are good when revenue exceeds cost. Things are even better when the difference between revenue and costs is substantial. The math behind increasing profit is simple: reduce costs, increase revenue. But, the difficult part is
- [Controlling Soybean Cyst Nematode: Do you have a resistance problem?](https://www.agvise.com/controlling-soybean-cyst-nematode-do-you-have-a-resistance-problem/) - This article originally appeared in the AGVISE Laboratories Winter 2022 Newsletter This is the third year of our soybean cyst nematode (SCN) resistance project. Each year, we have flagged spots in soybean fields and collected paired SCN soil samples in June and September. If the SCN egg count increases through summer and into fall, we
- [Banding Phosphorus and Potassium: Stretch your fertilizer dollars further](https://www.agvise.com/banding-phosphorus-and-potassium-stretch-your-fertilizer-dollars-further/) - This article originally appeared in the AGVISE Laboratories Winter 2022 Newsletter Broadcast or band? For phosphorus and potassium, these are big fertilizer questions. In recent months, high fertilizer prices have prompted farmers and agronomists to consider other strategies to reduce fertilizer costs without jeopardizing crop yield. Among the most common and effective options is placing
- [How much residual soil nitrate is left after the 2021 corn crop?](https://www.agvise.com/how-much-residual-soil-nitrate-is-left-after-the-2021-corn-crop/) - It's probably more than you think. So far, the residual soil nitrate-nitrogen trend following corn is much higher than average across the upper Midwest and northern Great Plains. This follows the same trend set by the 2021 wheat crop. For many growers in the region, the hot and dry growing season has resulted in high
- [Soil Sample Before Tillage: Consistent sample depth matters!](https://www.agvise.com/soil-sample-before-tillage-consistent-sample-depth-matters/) - The fall harvest season is a busy time of year. Farmers need to finish harvest, apply fertilizer, and complete any tillage operations before the long winter sets in. Another field operation that needs to be completed within this flurry of activity is soil sampling, and sampling timing is crucial to getting quality and consistent soil cores.
- [Understanding high residual soil nitrate-nitrogen following drought](https://www.agvise.com/understanding-high-residual-soil-nitrate-nitrogen-following-drought/) - Soil testing after small grains is well underway, and we are seeing higher than normal soil nitrate-nitrogen levels, as expected. Crop yields have varied from much below average to surprisingly decent in some locations. It is easy to understand why residual soil nitrate-nitrogen is high in fields where the 2021 drought was severe and crop
- [Save Time and Avoid Mistakes by Using AGVISOR to Submit Soil Samples Online](https://www.agvise.com/save-time-and-avoid-mistakes-by-using-agvisor-to-submit-soil-samples-online/) - AGVISE Laboratories is always trying to make soil sampling easier. Since 2011, AGVISE customers have enjoyed submitting soil samples online through our AGVISOR platform. AGVISOR is the online platform that allows you to submit soil samples (conventional, grid/zone, and soybean cyst nematode samples); save grower and field information (so you don't have to fill it
- [Potassium and Drought: A Two-fold Water Uptake Problem](https://www.agvise.com/potassium-and-drought-a-two-fold-water-uptake-problem/) - Potassium is back on the radar for many farmers and agronomists across the upper Midwest and northern Great Plains. In the past two weeks, corn growth and development have reached the stage where potassium deficiencies are becoming quite apparent, and widespread dry soil conditions during the 2021 drought have worsened the problem. In some instances, corn
- [Soybean cyst nematode: Failing resistance traits, increasing SCN populations](https://www.agvise.com/soybean-cyst-nematode-failing-resistance-traits-increasing-scn-populations/) - Originally featured in the Winter 2020-2021 AGVISE Laboratories Newsletter In 2019, AGVISE Laboratories investigated if popular soybean varieties with PI88788 or Peking SCN-resistance traits were effectively providing protection from soybean cyst nematode (SCN) and found that a number of the varieties failed to do so. We expanded the project in 2020 with cooperation from agronomists
- [Scouting Shorts: Soybean Iron Deficiency Chlorosis (IDC)](https://www.agvise.com/scouting-shorts-soybean-iron-deficiency-chlorosis-idc/) - As soybean plants emerge and add trifoliate leaves, keep your eyes peeled for soybean iron deficiency chlorosis (IDC). Through the upper Midwest and into the Canadian Prairies, soils with high pH and calcium carbonate pose a special problem for soybean plants and iron uptake. If you encounter soybean IDC, you will start to notice soybean
- [New Address for AGVISE Laboratories Canada Receiving Facility](https://www.agvise.com/new-address-for-agvise-laboratories-canada-receiving-facility/) - The AGVISE Laboratories Canadian Receiving Facility has moved across the street from its former location in Winkler, Manitoba. What this means for customers sending samples to our Canadian Receiving Facility: The new address is 380 Kimberly Rd Winkler, MB R6W 0H7 If you've dropped off samples at the receiving shed in Winkler, the shed is
- [Livestock Manure Sampling and Analysis](https://www.agvise.com/livestock-manure-sampling-and-analysis/) - As you develop crop nutrition plans for the upcoming year, it is important to include spring manure application in the crop nutrition budget. Manure is an excellent source of plant-available nutrients and offers nice economic savings, especially with high fertilizer prices. When manure is applied properly, you can maximize the nutrient value, reduce nutrient losses,
- [Fertilizing soybean](https://www.agvise.com/fertilizing-soybean/) - Soybean acres expanded greatly across the northern Great Plains and into Manitoba through the 1990s and 2000s. Today, soybean occupies a large portion of planted acres and makes a desirable rotation crop in canola, corn, and small grain production systems. As soybean has advanced northward and westward, soybean is often billed as a low maintenance
- [Soil Testing and 4R Nutrient Stewardship](https://www.agvise.com/soil-testing-and-4r-nutrient-stewardship/) - Each year, farmers aim to increase agricultural production and profitability while conserving our land resources for the next generation. These tandem goals drive sustainable soil fertility and crop nutrition decisions on cropland across the world. In 2005, global fertilizer industry and environmental stakeholders began developing a standard theme to emphasize science-based stewardship in soil fertility
- [Soil aggregate stability: What does it measure?](https://www.agvise.com/soil-aggregate-stability-what-does-it-measure/) - Soil aggregates are the building blocks of soil structure. Soil texture is the relative percentage of sand, silt, and clay in soil, but soil structure describes how those particles are arranged in the soil profile. Soil aggregates are glued together with soil organic matter, plant root exudates, and microorganisms like fungi. We classify soil aggregates
- [Active carbon (POXC): What does it measure?](https://www.agvise.com/active-carbon-poxc-what-does-it-measure/) - Carbon is the currency of nature: the backbone of soil organic matter and the energy source for soil microorganisms. Therefore, much interest in soil health focuses on increasing carbon storage in soil. When you reduce tillage or increase crop rotation diversity, you expect soil organic matter to increase. However, soil organic matter often changes slowly
- [Uffda, that's a lot of potash!](https://www.agvise.com/uffda-thats-a-lot-of-potash/) - Question: Can you really change the %K base cation saturation ratio? This winter, we have gotten more questions from farmers asking about the base cation saturation ratio (BSCR) concept. The farmers had attended a series of meetings where the speakers encouraged farmers increase the %K saturation in their soils and apply high potassium fertilizer rates
- [Phosphorus and the 4Rs: The progress we have made](https://www.agvise.com/phosphorus-and-the-4rs-the-progress-we-have-made/) - The year 2019 marked the 350th anniversary of discovering phosphorus, an element required for all life on Earth and an essential plant nutrient in crop production. Over the years, we have fallen in and out of love with phosphorus as a necessary crop input and an unwanted water pollutant. Through improved knowledge and technologies, we
- [Fertilizing grass lawn](https://www.agvise.com/fertilizing-grass-lawn/) - A productive and lush lawn requires some fertilizer every now and then. The major plant nutrients required for grass lawn are nitrogen (N), phosphorus (P), and potassium (K). Nitrogen is the nutrient required in the largest amount, although too much nitrogen can create other problems. A general rate of one (1) pound nitrogen per 1,000
- [Starter Fertilizer Display: How low can YOU go?](https://www.agvise.com/starter-fertilizer-display-how-low-can-you-go/) - When profits are squeezed, more farmers are asking about optimal starter fertilizer rates and how low starter fertilizer rates can be. These questions are the result of wanting to keep fertilizer costs down, to plant as many acres per day as possible, and to take advantage of more efficient, lower rates of banded phosphorus fertilizer
- [Estimating soil texture with cation exchange capacity (CEC)](https://www.agvise.com/estimating-soil-texture-with-cation-exchange-capacity/) - Soil texture is a basic physical soil property that describes the proportion of sand-, silt-, and clay-sized particles in soil. It controls the ability of soil to retain water and nutrients and the movement of water and nutrients through the soil profile. Soil texture is a fundamental soil property, but measuring soil texture requires time-consuming
- [The Meaning of Soil Health Testing and the Big Picture](https://www.agvise.com/the-meaning-of-soil-health-testing-and-the-big-picture/) - This submission is courtesy of Dr. Caley Gasch, Assistant Professor of Soil Health, North Dakota State University, Fargo, ND. It was originally published in the AGVISE Newsletter Winter 2017. Multiple definitions of “soil health” exist. In general, they all recognize that soil is a complex system, with interacting physical, chemical, and biological factors, which should
- [Soil Testing Right Behind the Combine](https://www.agvise.com/soil-testing-right-behind-the-combine/) - This submission is courtesy of Dr. David Franzen, Extension Soil Specialist, North Dakota State University, Fargo, ND. It was originally published in the AGVISE Newsletter Fall 2019. It is more the rule than the exception that soil sampling begins in mid-September, rather than starting immediately following small grain harvest. However, many producers miss an excellent
- [Soil Salinity Analysis: Which method to choose?](https://www.agvise.com/soil-salinity-analysis-which-method-to-choose/) - This submission is courtesy of Dr. Heather Matthees, Research Soil Scientist, USDA-ARS, Morris, MN. It was originally published in the AGVISE Newsletter Fall 2017. Salt-affected soils are a major problem for agricultural producers, resulting in $12 billion annual losses in crop production across the world. In the northern Great Plains and Canadian Prairies, soil salinity
- [Soil Science Review: Organic Matter](https://www.agvise.com/soil-science-review-organic-matter/) - Soil organic matter is a fundamental component of soil. It is comprised of living microorganisms, recently decomposed plant material, and stable humus organic compounds. Soil organic matter influences numerous biological, chemical, and physical properties of soil. It influences soil structure, water holding capacity, nutrient cycling, biological activity, and chemical fate and transport (e.g. pesticides). Soil
- [Fallow Syndrome: Preventing Phosphorus Problems](https://www.agvise.com/fallow-syndrome-preventing-phosphorus-problems/) - Producers in the northern Great Plains and upper Midwest need to consider the risk of fallow syndrome in their crop nutrition plans. You are probably asking, what is “fallow syndrome” and why should I care? After all, summer fallow is not that common anymore! But the greater number of Prevented Planting acres in 2019 and
- [Prevented Planting Acres in 2020: Maximizing Cover Crop Effectiveness](https://www.agvise.com/prevented-planting-acres-in-2020-maximizing-cover-crop-effectiveness/) - In 2020, there are again widespread acres of Prevented Planting (PP) in North Dakota and northwest Minnesota. Farmers are now making plans to plant cover crops on unplanted cropland in the next few weeks. It is important to establish cover crops on PP fields because growing plants help reduce the chance these fields will be
- [AGVISE Potato Petiole Analysis: Informative, Accessible, and Easy-to-Understand Reports](https://www.agvise.com/agvise-potato-petiole-analysis-informative-accessible-and-easy-to-understand-reports/) - Irrigated potato production is an intensive cropping system. It requires proactive labor, critical decision-making tools, and well-timed nutrient management. There is a fine line between supplying adequate plant nutrition and applying too much, which could cause potato tuber defects like mishappen tubers or hollow heart, reducing the marketable potato yield. Before seed potatoes go in
- [Soil Science Review: Soil pH, Acidity, and Alkalinity](https://www.agvise.com/soil-science-review-soil-ph-acidity-and-alkalinity/) - Soil pH is a basic soil property that affects many biological and chemical processes in soil. Simply knowing if a soil is acidic or alkaline can tell us a lot about how it behaves and how we can manage it. This is why soil pH is often called the master variable of biological and chemical
- [Copper for Small Grains](https://www.agvise.com/copper-for-small-grains/) - Among crops grown in the northern Great Plains, small grains (cereals) are the most susceptible to copper deficiency. Copper (Cu) is an essential micronutrient required in small concentrations for plant growth and reproduction. Copper deficiency symptoms in cereals include pale yellowing, wilted and twisted leaf tips, and malformed seed heads. Severe copper deficiency will stop
- [Caution: Ammonium Sulfate with Seed](https://www.agvise.com/caution-ammonium-sulfate-with-seed/) - Seed-placed fertilizer is a common practice to increase seedling vigor and optimize fertilizer placement and crop response. This is a popular strategy to apply phosphorus for canola, corn, and wheat. However, the seed-placed fertilizer rate cannot exceed seed safety limits, otherwise seedling germination and plant population may be reduced. Sulfur is very important in canola
- [5 Things You Should Know About Calcium](https://www.agvise.com/5-things-you-should-know-about-calcium/) - 1. Calcium (Ca) is abundant in soils of the upper Midwest, northern Great Plains, and Canadian Prairies; calcium deficiency in agronomic crops is rare Calcium makes up about 3.6% of the Earth’s crust, and it is relatively abundant in agricultural soils across the region. In soils with pH greater than 6.0, Ca is the dominant
- [5 Things You Should Know About Phosphorus](https://www.agvise.com/5-things-you-should-know-about-phosphorus/) - 1. The two accepted soil phosphorus tests in the North Central Region are the Olsen and Bray-P1 methods The Olsen (bicarbonate) method is the standard soil P test in the North Central region. This method was developed to work on soils with low and high pH. The Olsen method works well in precision soil sampling,
- [High Soil Nitrogen following Drought: How to manage next year](https://www.agvise.com/high-soil-nitrogen-following-drought-how-to-manage-next-year/) - From time to time, moderate to severe droughts hit the Great Plains. Such is life in semi-arid climates. When a drought occurs, it is normal to find higher residual soil nitrate-nitrogen after harvest. Since the widespread adoption of soil testing in the 1970s, we have seen this phenomenon in all major drought years: 1988, 2002,
- [Field Variability Screaming in Your Ear? Precision Soil Sampling is the Answer](https://www.agvise.com/field-variability-screaming-in-your-ear-precision-soil-sampling-is-the-answer/) - Your land is variable. Each fall, you watch the combine yield monitor go up and down across the field. You know where crop yield will be the best in wet years and dry years. So, why do you still use a whole-field composite soil test to manage fertilizer inputs and ignore the obvious field variability
- [Soybean Iron Deficiency Chlorosis: Symptoms, Causes, and Management](https://www.agvise.com/soybean-iron-deficiency-chlorosis-symptoms-causes-and-management/) - If soybean turns yellow during an early growth stage, you may have a case of soybean iron deficiency chlorosis (IDC). The distinctive yellow symptoms of soybean IDC often appear as soybean enters the first- to third-trifoliate leaf stage. Soybean IDC is characterized by distinct interveinal chlorosis (yellow leaf with green leaf veins) in the
- [Plant Analysis Sampling Guide](https://www.agvise.com/plant-analysis-sampling-guide/) - Plant nutrient analysis is a useful management tool. The AGVISE Plant Analysis Sampling Guide discusses the importance of plant analysis in proper crop nutrition and how to collect plant samples. It is important to collect the correct plant part at the correct plant growth stage to ensure accurate interpretation of plant analysis results. To ensure

## Pages

- [New Home](https://www.agvise.com/) - AGVISE Laboratories offers a complete line of agricultural testing services and agronomic support to customers in the United States and Canada. We are experts in soil, plant, manure, fertilizer, and water analysis. We also provide GLP and non-GLP soil and water characterization to research firms and environmental consultants.
- [Work For Us](https://www.agvise.com/contact-us/work-for-us/)
- [People](https://www.agvise.com/about-us/people/)
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- [Plant Analysis](https://www.agvise.com/services/plant-analysis/)
- [Used Equipment](https://www.agvise.com/used-equipment/) - Do you have used equipment to sell? We help AGVISE customers advertise their used soil sampling equipment here. Let us know if you have something to sell! Veris 3100 Soil Mapping System Instrument Package Hub Rock Guards Spare Parts One Owner, Always Shedded and Field Ready! Contact: Alain Bellicot Crop One, Inc. 320-226-3376 frenchieb@frontiernet.net
- [Certifications](https://www.agvise.com/certifications/) - Quality Control is First Priority for AGVISE AGVISE Laboratories in Northwood, ND and Benson, MN participate in three proficiency testing programs: the National Proficiency Testing program (NAPT), the Agriculture Laboratory Proficiency (ALP) program, and the Minnesota Department of Agriculture Manure Analysis Proficiency program. Our laboratories are also approved by the NAPT-Performance Assessment Program (PAP) and
- [AGVISE Seminars](https://www.agvise.com/agvise-seminars/)
- [Services](https://www.agvise.com/services/)
- [Employment Application](https://www.agvise.com/employment-application/)
- [AGVISE.COM Email Issue](https://www.agvise.com/agvise-com-email-issue/) - Over the weekend, our email servers, which are hosted by an external company, went down and have not been restored. We therefore do not have access to our regular @agvise.com email inboxes. We have been in contact with the email server company and they are hoping that access will be restored later this evening. Even
- [Privacy Policy](https://www.agvise.com/privacy-policy/) - This policy is effective as of April 6, 2023. This Privacy Policy applies to the information and data that Agvise, 804 Highway 15 West P.O. Box 510, Northwood, ND 58267 collects when you use our website or our products and services. This policy applies to: Visitors to our website Customers Users of our products and
- [Cookie Policy](https://www.agvise.com/cookie-policy/) - Introduction This document will inform you about how and why we use cookies. We will also tell you which cookies we use and some information about third parties which also place cookies on our website. What is a cookie? Cookies are small text files that are stored on your device and which let us make
- [Update user Info](https://www.agvise.com/update-user-info/)
- [Contact Us](https://www.agvise.com/contact-us/)
- [AGVISE Laboratories History](https://www.agvise.com/about-us/agvise-laboratories-history/)
- [Mission](https://www.agvise.com/about-us/)
- [AGVISOR Down](https://www.agvise.com/agvisor-down/) - AGVISOR is temporarily unavailable due to network maintenance and updates Our online AGVISOR platform is temporarily unavailable for network maintenance and updates starting on Saturday, December 3 at 12:00 pm CST (2022-12-03 18:00 UTC). We will restore AGVISOR access as soon as possible after the update is complete. While AGVISOR is unavailable, we can still
- [Wintex 1000](https://www.agvise.com/wintex-1000/)
- [Installed Soil Sampling Kit Examples](https://www.agvise.com/installed-soil-sampling-kit-examples/)
- [amaptest](https://www.agvise.com/amaptest/)
- [Instructions](https://www.agvise.com/instructions/)
- [Seminar Registration](https://www.agvise.com/seminar-registration/)
- [Resources](https://www.agvise.com/resources/)
- [404](https://www.agvise.com/404-2/)
- [Research Project Media](https://www.agvise.com/research-project-media/)
- [Hydraulic Equipment](https://www.agvise.com/hydraulic-equipment/) - AGVISE Laboratories has manufactured and distributed soil sampling equipment since the mid-1980s. During that time, our staff has utilized personal experience to test and design heavy-duty hydraulic soil sampling systems. With customers from U.S. and Canada, we offer equipment that meets the different needs of our customers. Some customers require soil sampling equipment for 24-inch
- [Power Units](https://www.agvise.com/power-units/) - AGVISE Laboratories offers different power units to meet your varied soil sampling needs. The 24-inch soil sampling system uses the standard electric-hydraulic power unit. The 42-inch soil sampling system uses either the large electric-hydraulic power unit or the gas motor power unit.
- [Vehicle-Engine Powered Hydraulic Systems](https://www.agvise.com/vehicle-engine-powered-hydraulic-systems/) - AGVISE Laboratories has been selling soil sampling equipment since the mid-1980s. These replacement parts are available for older vehicle-engine powered hydraulic soil sampling systems. Some items may not be available because the replacement part had been deprecated as customers upgraded to newer soil sampling systems.
- [Soil Grinder](https://www.agvise.com/soil-grinder/) - AGVISE Laboratories has manufactured soil grinding equipment since 1980. After trying different soil grinders from other manufacturers, we decided to design our own soil grinding equipment to meet the efficiency and reliability demands of commercial soil testing. These systems process thousands of soil samples every day and have proven themselves time and time again.
- [Shop](https://www.agvise.com/shop/)
- [Hand Equipment](https://www.agvise.com/hand-equipment/) - AGVISE Laboratories distributes hand soil sampling equipment from JMC and KHS manufacturers. The JMC product line offers interchangeable screw-on soil probes of 12-, 15-, and 18-inch length.
- [Email Us](https://www.agvise.com/email-us/)
- [Home](https://www.agvise.com/home-2/) - COVID-19 Announcement AGVISE Laboratories remains open through the COVID-19 state restrictions.

## Products

- [UPS Shipping Label](https://www.agvise.com/product/ups-shipping-label/) - For domestic shipping in the United States only.
- [Fed Ex Shipping Label](https://www.agvise.com/product/fed-ex-shipping-label/) - For domestic shipping in the United States only.
- [Stainless Steel Soil Grinder](https://www.agvise.com/product/stainless-steel-soil-grinder-3/) - The stainless steel hammermill-style soil grinder can process a soil sample in just a few seconds. The 1.0-horsepower electric motor drives the knife assembly at 1750 rpm, quickly crushing and homogenizing the soil sample. The hardened steel knives will process several thousand soil samples before the knives need replacement. The soil grinding chamber can grind
- [Control Box, 12 VDC, 12-ft Wired Cable](https://www.agvise.com/product/control-box-electric-2-button-12-ft-4-wire-cable-bucher/) - Replacement power unit control box, 12-ft cable. Compatible with standard electric-hydraulic power unit; available for 3-wire and 4-wire SPX motors and 4-wire Bucher motors.
- [Electric Solenoid, 12 VDC](https://www.agvise.com/product/electric-solenoid-3-post/) - Replacement electric solenoid. Compatible with standard electric-hydraulic power unit.
- [Electric Motor, 12 VDC](https://www.agvise.com/product/electric-motor-12-vdc-1-post/) - Replacement 12 VDC electric motor. Compatible with standard or large electric-hydraulic power unit.
- [Soil Grinder - Power Sieve Combination](https://www.agvise.com/product/soil-grinder-power-sieve-combination/) - The stainless steel hammermill-style soil grinder can process a soil sample in just a few seconds. The 1.0-horsepower electric motor drives the knife assembly at 1750 rpm, quickly crushing and homogenizing the soil sample. The hardened steel knives will process several thousand soil samples before the knives need replacement. The soil grinding chamber can grind
- [Hydraulic Cylinder Channel Iron, 30-inch Single-stage](https://www.agvise.com/product/hydraulic-cylinder-channel-iron-30-inch-single-stage/) - Channel iron mount for 30-inch single-stage hydraulic cylinder.
- [Reference Number Sticker Pad](https://www.agvise.com/product/reference-number-sticker-pad/) - Pre-printed AGVISE reference number sticker pads. Use with third-party soil information login sheets. Available in 1- or 14-sticker sheets. 25 sheets per booklet.
- [Soil Submission Form, Conventional 4-Field](https://www.agvise.com/product/soil-submission-forms/) - AGVISE soil information sheets for conventional soil samples (one soil sample per field). 25 sheets per booklet.
- [Soil Submission Form, Grid](https://www.agvise.com/product/soil-submission-form-grid/) - AGVISE soil information sheets for grid soil samples. Allows 10 soil samples per sheet. 25 sheets per booklet.
- [Soil Submission Form, Zone](https://www.agvise.com/product/soil-submission-form-zone/) - AGVISE soil information sheets for zone soil samples. Allows 5 soil samples per sheet. 25 sheets per booklet.
- [Soil Submission Form, Online](https://www.agvise.com/product/soil-submission-form-online/) - Printable label sheets for online AGVISE soil sample submission. Allows 8 soil samples per sheet. 100 sheets per pack. Requires laser printer.
- [Soybean Cyst Nematode Form, Paper](https://www.agvise.com/product/soybean-cyst-nematode-form-paper/) - AGVISE soybean cyst nematode information sheets. Allows 4 soil samples per sheet. Sold as individual sheets.
- [USPS Mailing Label](https://www.agvise.com/product/usps-mailing-label/) - USA USE ONLY
- [Plastic Bag, Large Bulk Sample](https://www.agvise.com/product/plastic-bag-large/) - For customers who submit bulk soil samples, use these large plastic bags. Requires pre-cut soil sample bag and barcode reference sticker from soil submission form. Please call AGVISE Laboratories for instructions. Dimensions: 12 x 6 x 24 inch.
- [Customer Account Sticker](https://www.agvise.com/product/customer-account-sticker/) - Make paperwork quick and easy. Place your customized account sticker on any AGVISE forms, saving time and mistakes. AGVISE account required.
- [Potato Petiole Form](https://www.agvise.com/product/potato-petiole-form/) - AGVISE potato petiole information sheets. Track weekly potato petiole and soil analysis results throughout the growing season with one information sheet. Each week, a new barcode sticker is placed on the potato petiole and soil bags, linking the field results together. Available in 12-weeklong sheets.
- [Plant Sample Bag](https://www.agvise.com/product/plant-sample-bag/) - Submit plant samples in the study Tyvek plant sample envelope. Ventilation holes prevent decay in transit. Plant sampling instructions and sample information instructions are provided on envelope. Dimensions: 9 x 12 inch.
- [Potato Petiole Bag](https://www.agvise.com/product/potato-petiole-bag/) - Submit potato petiole samples in the compact envelope. Each week, place a new barcode sticker from the potato petiole form on the potato petiole bag. Dimensions: 6 x 9 inch.
- [Purolator Shipping Label - Avoid Using if Possible](https://www.agvise.com/product/purolator-shipping-label/) - Purolator shipping label addressed to AGVISE Laboratories. AGVISE account required; shipping cost will be invoiced upon label use. Please be aware that AGVISE does not recommend using these labels, as these shipping labels are considered Manual Bills of Lading by Purolator and will incur a Manual Shipping Fee. This fee will be passed on to
- [Soil Submission Form, Conventional 1-Field](https://www.agvise.com/product/soil-submission-form-conventional-1-field/) - AGVISE soil information sheets for conventional soil samples (one soil sample per field). 25 sheets per booklet.
- [Shipping Box](https://www.agvise.com/product/shipping-box/) - Available in single boxes or in a bundle (25 boxes). Please call AGVISE Laboratories (701-587-6010) for other quantities.
- [Soil Sample Bag](https://www.agvise.com/product/soil-sample-bag/) - Enter the number of individual soil sample bags you would like to order. Increments of 50 are preferred. Minimum order is 10. Submit soil samples in the industry standard plastic-lined soil sample bag. Requires barcode reference sticker from soil submission form; please see soil submission form options.
- [Plastic Bag, Pairing Soil Depths](https://www.agvise.com/product/plastic-bag-small/) - For customers who submit multiple-depth soil samples, place the paired soil depths inside one plastic bag first. This keeps everything together upon arrival at the laboratory. Please call AGVISE Laboratories for instructions. Regarding quantity of bags to add to cart, please type the number of plastic bags you will need for the current sampling season.
- [Control Box, 12 VDC, Wireless](https://www.agvise.com/product/control-box-electric-2-button-wireless-bucher/) - Replacement power unit control box, wireless remote system. Compatible with standard electric-hydraulic power unit; available for 4-wire Bucher motors.
- [Hydraulic Cylinder, 42-inch Two-stage](https://www.agvise.com/product/hydraulic-cylinder-42-inch-two-stage/) - Replacement 42-inch two-stage hydraulic cylinder. Includes roll pin for Quicktach soil probe system. Hydraulic port size is 1/2-inch diameter.
- [Cleaning Brush](https://www.agvise.com/product/cleaning-brush/) - Replaceable screw-on nylon brush for 24-inch Quicktach soil probes. Requires metal handle (SKU 20401001), sold separately.
- [KHS Soil Probe, 8-inch](https://www.agvise.com/product/khs-soil-probe/) - The 8-inch soil probe is constructed from 11-gauge stainless steel, welded foot pedal, and T-handle. The alligator-style soil probe opening allows fast, easy soil sampling. Probe diameter is 1 inch with sharpened tip.
- [Honda Gas Motor Power Unit](https://www.agvise.com/product/honda-gas-motor-power-unit/) - Price: $5800.00 Ships on pallet, must call to order 8-horsepower Honda gas motor with large capacity hydraulic pump and hydraulic fluid tank. Power unit for 42-inch soil sampling systems with 42-inch two-stage telescoping cylinder. Electric starter for gas motor. Electric control box for hydraulic valve system. Honda 8-horsepower GX-240 gas motor Two-stage pump with 16/4
- [Soil Grinder Handle with Trapdoor Screen](https://www.agvise.com/product/handle-soil-grinder-trap-door-screen/) - Replacement soil grinder handle-trap door screen.
- [Power Sieve](https://www.agvise.com/product/power-sieve-3/) - The power sieve, available with 1- or 2-mm screen, will catch soil and remove coarse fragments and crop residue from the processed soil sample. The power sieve is bolted directly below the soil grinder, automatically removing stones and debris as soil exits the soil grinder. The power sieve is recommended for high-throughput operations. The electric
- [JMC Cleaning Tool Pouch](https://www.agvise.com/product/jmc-cleaning-tool-pouch/) - Sturdy leather pouch with belt loop. Holds JMC Cleaning Tool.
- [JMC Cleaning Brush](https://www.agvise.com/product/jmc-cleaning-brush/) - Remove soil particles and debris from JMC soil probe tubes. Comfortable wooden handle Stainless steel shaft Stiff nylon bristles Overall length: 13 inches Brush size: 5 inch long, 1 inch diameter
- [JMC Soil Probe Tube](https://www.agvise.com/product/jmc-sampling-tubes/)
- [JMC N-2 Handle (PN003)](https://www.agvise.com/product/jmc-n-2-handle/) - The N-2 Handle collects soil cores up to 18 inches deep. The handle is fixed and does not have an extension rod for deep soil sampling (see JMC Backsaver Handle). Compatible with JMC interchangeable screw-on soil probes of 12-, 15-, and 18-inch length. Includes JMC cleaning tool and pouch.
- [JMC Backsaver Handle (PN001)](https://www.agvise.com/product/jmc-backsaver-handle/) - Pull shallow or deep soil cores easily with the JMC Backsaver Handle. With its extendable shaft and 18-inch soil probe, you can collect soil cores up to 46 inches deep. No need to bend over when pulling soil cores from the ground; the hand grip stays near your waist level as the extendable shaft retracts
- [JMC Cleaning Tool](https://www.agvise.com/product/jmc-cleaning-tool/) - Don't clean that soil probe with your bare hands. You don't know where they've been. Save yourself a world of trouble and clean your soil probe with the JMC cleaning tool. Cleans JMC soil probe tubes quickly and thoroughly Minimizes effort to extract soil cores Lubricates tube for easier soil sampling and corrosion prevention Keeps
- [Receiver Hitch Mounting Bracket](https://www.agvise.com/product/receiver-hitch-mounting-bracket/) - For receiver hitch mounted soil sampling systems, the receiver hitch bracket provides a quick and versatile way to attach the hydraulic cylinder channel to your vehicle. To install, you will measure the correct hydraulic cylinder height from the ground (30 or 42 inches depending on hydraulic cylinder type), then drill holes for the bracket and
- [Hydraulic Soil Sampling Kit (24 Inch Electric)](https://www.agvise.com/product/hydraulic-soil-sampling-kit/) - Ships in multiple boxes.
- [Quicktach Soil Probe, Stainless Steel](https://www.agvise.com/product/stainless-steel-soil-probe-24-inch-solid-with-quicktach-collar/) - Different soil probes and tips are needed for different soil sampling conditions, from dry, hard soils to wet, sticky clay soils. The stainless steel soil probe is light and versatile. Slotted and solid soil probes are available. Slotted soil probes allow easy visual inspection of each soil core. Solid soil probes have greater resilience, thus
- [Quicktach Soil Probe, Mild Steel, Extension Rod](https://www.agvise.com/product/extension-rod-for-24-48-inch-mild-steel-soil-probe-extension-quicktach-collar/) - Extension rod for 24-48 inch mild steel soil probe extension with pin-type linkage (SKU 20304001). Length: 24 inch. Includes one (1) Quicktach collar and pin-type linkage. Limited stock available.
- [Quicktach Soil Probe, Mild Steel, 24-48 inch Extension](https://www.agvise.com/product/mild-steel-soil-probe-extension-24-48-inch-solid-pin-type-5-8-inch-rolled-opening/) - The mild steel soil probe is an older design, yet still popular among diehard soil samplers. The soil probe tip is rolled steel and non-replaceable. The mild probe extension is designed to reach the 24-48 soil depth, by going down the same hole made after collecting the 0-24 inch soil depth with larger diameter 24-inch
- [Electric Power Cables, 20 feet](https://www.agvise.com/product/electric-cables-20-ft-each-red-and-black/) - Replacement electric cables, red and black, 20-feet length. Compatible with standard or large electric-hydraulic power unit.
- [Mounting Plate](https://www.agvise.com/product/mounting-plate-standard-electric-hydraulic-power-system/) - Replacement mounting plate. Compatible with standard electric-hydraulic power unit.
- [Hydraulic Cylinder O-Ring Seal Kit](https://www.agvise.com/product/hydraulic-cylinder-o-ring-seal-kit-30-inch-single-stage/) - Replacement hydraulic cylinder O-ring seal kit.
- [Hydraulic Cylinder, 30-inch Single-stage](https://www.agvise.com/product/hydraulic-cylinder-30-inch-single-stage/) - Replacement 30-inch single-stage hydraulic cylinder. Includes roll pin for Quicktach soil probe system. Hydraulic port size is 3/8-inch diameter.
- [Cleaning Brush Handle](https://www.agvise.com/product/cleaning-brush-handle/) - Long metal handle for screw-on cleaning brush (SKU 20401002), sold separately. Fits 24-inch Quicktach soil probes.
- [Soil Probe Tip, Heavy-Duty Chromoly Steel](https://www.agvise.com/product/soil-probe-tip-heavy-duty-soil-probe-3-4-inch-cutting-dry/) - Soil probe tip for heavy-duty chromoly steel soil probe. Soil probe tips are screw-on and easily replaceable. The screw-on thread sizes are different for stainless steel and heavy-duty chromoly steel soil probes. The dry (cutting) tip works well in dry, hard soil conditions. The cutting tip holds onto dry, powdery soil cores that otherwise would
- [Soil Probe Tip, Stainless Steel](https://www.agvise.com/product/soil-probe-tip-stainless-steel-probe-5-8-inch-cutting-dry/) - Soil probe tip for stainless steel probe. Soil probe tips are screw-on and easily replaceable. The screw-on thread sizes are different for stainless steel and heavy-duty chromoly steel soil probes. The dry (cutting) tip works well in dry, hard soil conditions. The cutting tip holds onto dry, powdery soil cores that otherwise would fall out
- [Vehicle Frame Mounting Kit](https://www.agvise.com/product/vehicle-frame-mounting-kit/) - For in-cab mounted soil sampling systems, the frame mounting kit will attach the hydraulic cylinder channel via the underbody vehicle frame for a sturdy and solid soil sampling system. To install, the crossmember is welded or bolted on the underside of the vehicle frame, then the channel iron bracket and channel iron are bolted to
- [AGVISE T-Handle](https://www.agvise.com/product/agvise-t-handle/) - This simple T-handle is constructed from 1/2-inch metal pipe and makes a sturdy, economical soil probe. Soil cores may be collected up to 24 inches deep using the 18-inch soil probe; the 6-inch extension allows you do you go down that same hole twice for the lower subsoil core. Compatible with JMC interchangeable screw-on soil
- [Bearing, Soil Grinder](https://www.agvise.com/product/bearing-soil-grinder/) - Replacement bearing for soil grinder. Outside Diameter (OD): 2.65 inch Inside Diameter (ID): 1.0 inch Width: 0.59 inch
- [Hand Sieve Catch Pan](https://www.agvise.com/product/hand-sieve-catch-pan/) - Hand sieve, available with 2-mm screen, will catch soil and remove coarse fragments and crop residue from the processed soil sample. The hand sieve includes its own catch pan.
- [Quicktach Soil Probe, Heavy-Duty Chromoly Steel](https://www.agvise.com/product/heavy-duty-chromoly-steel-soil-probe-24-inch-solid-with-quicktach-collar/) - Different soil probes and tips are needed for different soil sampling conditions, from dry, hard soils to wet, sticky clay soils. The heavy-duty chromoly steel soil probe was designed specifically for wet, sticky clay soils; the inside diameter for the heavy-duty soil probe is slightly larger to reduce soil probe plugging. The heavy-duty soil probe,
- [Knife Assembly](https://www.agvise.com/product/knife-assembly/) - Replacement knife assembly. Includes 12 knives, 4 pins, and shaft.
- [Bearing, Power Sieve](https://www.agvise.com/product/bearing-power-sieve/) - Replacement bearing for power sieve. Outside Diameter (OD): 1.57 inch Inside Diameter (ID): 0.62 inch Width: 0.475 inch
- [Power Sieve Catch Pan](https://www.agvise.com/product/power-sieve-catch-pan/) - Replacement power sieve catch pan, available with 1-mm or 2-mm screen.
- [Knife Set](https://www.agvise.com/product/knife-set/) - Replacement knife set. Includes 12 knives, 4 pins.
- [Soil Grinder Handle Spring](https://www.agvise.com/product/spring-soil-grinder-handle/) - Replacement spring for soil grinder handle. A strong spring keeps the trap door closed tightly, until you are ready to dump the soil sample.
- [Large Electric-Hydraulic Power Unit](https://www.agvise.com/product/large-electric-hydraulic-power-unit/) - International Fluid Power 12 VDC electric-drive hydraulic pump with two-stage flow unloader and large hydraulic fluid reservoir. Power unit for 42-inch soil sampling system with 42-inch two-stage telescoping cylinder. 12 VDC electric motor Two-stage pump with unloader set at 700 psi, 4.0 gpm @ 250 psi, 0.6 gpm @ 2000 psi 3.2 gallon steel reservoir
- [Standard Electric-Hydraulic Power Unit](https://www.agvise.com/product/standard-electric-hydraulic-power-unit/) - Bucher 12 VDC electric-drive hydraulic pump. Power unit for 24-inch soil sampling system with 30-inch single-stage hydraulic cylinder. 12 VDC electric motor Single-stage pump, 2.6 gpm @ 250 psi, 1.24 gpm @ 2000 psi C1 port relief set at 2500 psi, C2 port relief set at 1400 psi 0.83 gallon steel reservoir Cycle time 10-12
- [Quicktach Collar, Heavy-Duty Chromoly Steel](https://www.agvise.com/product/quicktach-collar-heavy-duty-chromoly-steel-probe/) - Extra Quicktach collar for heavy-duty chromoly soil probe (if needed). The Quicktach collar allows for quick access and removal of the soil probe from the hydraulic cylinder. A simple roll-pin on the hydraulic cylinder ram locks the Quicktach collar into place with an easy quarter-turn. The Quicktach collar is welded onto the soil probe after
- [Quicktach Collar, Stainless Steel](https://www.agvise.com/product/quicktach-collar-stainless-steel-probe/) - Extra Quicktach collar for stainless steel soil probe (if needed). The Quicktach collar allows for quick access and removal of the soil probe from the hydraulic cylinder. A simple roll-pin on the hydraulic cylinder ram locks the Quicktach collar into place with an easy quarter-turn. The Quicktach collar is welded onto the soil probe after
- [Quicktach Adapter, Screw-On](https://www.agvise.com/product/quicktach-adapter/) - Upgrade to the Quicktach soil probe system! The Quicktach adapter screws onto the end of the threaded cylinder ram, used in older vehicle-engine powered soil sampling system.
- [Hydraulic Solenoid, 12 VDC](https://www.agvise.com/product/hydraulic-solenoid-1-post-brass-type-2007-model-and-earlier/) - Replacement hydraulic solenoid. Compatible with standard electric-hydraulic power unit.
- [Hydraulic Cylinder Channel Iron, 42-inch Two-stage](https://www.agvise.com/product/channel-iron-for-hydraulic-cylinder-42-inch-two-stage/) - Channel iron mount for 42-inch two-stage hydraulic cylinder.
- [Manure Sample Kit](https://www.agvise.com/product/manure-sample-kit/)
- [Water Sample Kit](https://www.agvise.com/product/water-sample-kit/)
- [Soil Sample Bag, Pre-Cut](https://www.agvise.com/product/soil-sample-bag-pre-cut/) - For customers who submit bulk soil samples in large plastic bags, please use pre-cut soil sample bags. Place barcode reference sticker on the pre-cut bag before placing inside large plastic bag. 100 pre-cut bags per unit.

## Categories

- [Soil Analysis](https://www.agvise.com/category/soil-analysis/)
- [Soil Sampling](https://www.agvise.com/category/soil-sampling/)
- [Soil pH](https://www.agvise.com/category/soil-fertility-plant-nutrition/soil-ph/)
- [Manure](https://www.agvise.com/category/manure/)
- [Plant Analysis](https://www.agvise.com/category/plant-analysis/)
- [Soil Biological Analysis](https://www.agvise.com/category/soil-analysis/soil-biological-analysis/)
- [Corn](https://www.agvise.com/category/crop-management/corn/)
- [Troubleshooting](https://www.agvise.com/category/plant-analysis/troubleshooting/)
- [Soil Physical Analysis](https://www.agvise.com/category/soil-analysis/soil-physical-analysis/)
- [Lawn and Garden](https://www.agvise.com/category/crop-management/lawn-garden/)
- [Soybean](https://www.agvise.com/category/crop-management/soybean/)
- [Potato](https://www.agvise.com/category/crop-management/potato/)
- [Prevented Planting](https://www.agvise.com/category/crop-management/prevented-planting/)
- [Soil Chemical Analysis](https://www.agvise.com/category/soil-analysis/soil-chemical-analysis/)
- [Environment](https://www.agvise.com/category/environment/)
- [Fertilizer](https://www.agvise.com/category/fertilizer/)
- [Integrated Pest Management](https://www.agvise.com/category/integrated-pest-management/)
- [Soil Fertility and Plant Nutrition](https://www.agvise.com/category/soil-fertility-plant-nutrition/)
- [Soil Management](https://www.agvise.com/category/soil-management/)
- [Drought](https://www.agvise.com/category/environment/drought/)
- [Water Quality](https://www.agvise.com/category/environment/water-quality/)
- [Fertilizer Placement](https://www.agvise.com/category/fertilizer/fertilizer-placement/)
- [In-Season Fertilizer](https://www.agvise.com/category/fertilizer/in-season-fertilizer/)
- [Starter Fertilizer](https://www.agvise.com/category/fertilizer/starter-fertilizer-fertilizer/)
- [Disease](https://www.agvise.com/category/integrated-pest-management/disease/)
- [Weed](https://www.agvise.com/category/integrated-pest-management/weed/)
- [Base Cation Saturation Ratio](https://www.agvise.com/category/soil-fertility-plant-nutrition/base-cation-saturation-ratio/)
- [Micronutrients](https://www.agvise.com/category/soil-fertility-plant-nutrition/micronutrients/)
- [Nitrogen](https://www.agvise.com/category/soil-fertility-plant-nutrition/nitrogen/)
- [Phosphorus](https://www.agvise.com/category/soil-fertility-plant-nutrition/phosphorus/)
- [Potassium](https://www.agvise.com/category/soil-fertility-plant-nutrition/potassium/)
- [Sulfur](https://www.agvise.com/category/soil-fertility-plant-nutrition/sulfur/)
- [Saline and Sodic Soil](https://www.agvise.com/category/soil-management/saline-and-sodic-soil/)
- [Soil Amendment](https://www.agvise.com/category/soil-management/soil-amendment/)
- [Tillage](https://www.agvise.com/category/soil-management/tillage/)
- [Equipment](https://www.agvise.com/category/soil-sampling/equipment/)
- [Precision Ag](https://www.agvise.com/category/soil-sampling/precision-ag/)
- [Crop Management](https://www.agvise.com/category/crop-management/)
- [Canola](https://www.agvise.com/category/crop-management/canola/)
- [Sugar Beet](https://www.agvise.com/category/crop-management/sugar-beet/)
- [Cover Crop](https://www.agvise.com/category/crop-management/cover-crop/)
- [Calcium](https://www.agvise.com/category/soil-fertility-plant-nutrition/calcium/)
- [Regional Data](https://www.agvise.com/category/agvise/regional-data/)
- [AGVISE Laboratories](https://www.agvise.com/category/agvise/)
- [Research](https://www.agvise.com/category/agvise/research/)
- [Wheat](https://www.agvise.com/category/crop-management/wheat/)
- [Copper](https://www.agvise.com/category/soil-fertility-plant-nutrition/micronutrients/copper/)
- [Iron](https://www.agvise.com/category/soil-fertility-plant-nutrition/micronutrients/iron/)
- [Zinc](https://www.agvise.com/category/soil-fertility-plant-nutrition/micronutrients/zinc/)
- [Molybdenum](https://www.agvise.com/category/soil-fertility-plant-nutrition/micronutrients/molybdenum/)
- [Quality Control](https://www.agvise.com/category/agvise/quality-control/)
- [Soil Erosion](https://www.agvise.com/category/soil-management/soil-erosion/)
- [Soil Health](https://www.agvise.com/category/soil-health/)
- [Sunflower](https://www.agvise.com/category/crop-management/sunflower/)
- [Crop Removal](https://www.agvise.com/category/fertilizer/crop-removal/)

## Tags

- [starter fertilizer](https://www.agvise.com/tag/starter-fertilizer/)
- [corn](https://www.agvise.com/tag/corn/)
- [wheat](https://www.agvise.com/tag/wheat/)
- [crop removal](https://www.agvise.com/tag/crop-removal/)
- [safe rate](https://www.agvise.com/tag/safe-rate/)
- [seed placed](https://www.agvise.com/tag/seed-placed/)

## Product categories

- [Hydraulic Equipment](https://www.agvise.com/product-category/hydraulic-equipment/) - AGVISE Laboratories has manufactured and distributed soil sampling equipment since the mid-1980s. During that time, our staff has utilized personal experience to test and design heavy-duty hydraulic soil sampling systems. With customers from U.S. and Canada, we offer equipment that meets the different needs of our customers. Some customers require soil sampling equipment for 24-inch soil cores, while others may need to collect 48-inch soil cores. Our equipment is designed to collect quality soil cores under adverse soil sampling conditions, from dry, hard soils to wet, sticky clay soils, and even through frost. Installed Soil Sampling Kit Examples
- [Hand Equipment](https://www.agvise.com/product-category/hand-equipment/) - AGVISE Laboratories distributes hand soil sampling equipment from JMC and KHS manufacturers. The JMC product line offers interchangeable screw-on soil probes of 12-, 15-, and 18-inch length.
- [Soil Grinding Equipment](https://www.agvise.com/product-category/soil-grinding-equipment/) - AGVISE Laboratories has manufactured soil grinding equipment since 1980. After trying different soil grinders from other manufacturers, we decided to design our own soil grinding equipment to meet the efficiency and reliability demands of commercial soil testing. These systems process thousands of soil samples every day and have proven themselves time and time again.
- [Soil Probe Tube](https://www.agvise.com/product-category/hand-equipment/soil-probe-tube/)
- [Soil Probe Handle](https://www.agvise.com/product-category/hand-equipment/soil-probe-handle/)
- [Accessories](https://www.agvise.com/product-category/hand-equipment/accessories/)
- [Soil Sampling System Kit](https://www.agvise.com/product-category/hydraulic-equipment/soil-sampling-system-kit/) - The 24-inch soil sampling system is sold as a complete kit. The 48-inch soil sampling systems are sold as individual components, either with the large electric-hydraulic power unit or Honda gas motor power unit. Please contact us with any questions about which soil sampling system is best for you. Installed Soil Sampling Kit Examples
- [Power Unit](https://www.agvise.com/product-category/hydraulic-equipment/power-unit/) - We offer different power units to meet different soil sampling needs. The 24-inch soil sampling system uses the standard electric-hydraulic power unit. The 42-inch soil sampling system uses either the large electric-hydraulic power unit or the Honda gas motor power unit.
- [Soil Probe - Quicktach](https://www.agvise.com/product-category/hydraulic-equipment/soil-probe-quicktach/)
- [Accessories](https://www.agvise.com/product-category/hydraulic-equipment/accessories-hydraulic-equipment/)
- [Replacement Parts](https://www.agvise.com/product-category/hydraulic-equipment/replacement-parts/)
- [Soil Grinding System](https://www.agvise.com/product-category/soil-grinding-equipment/soil-grinding-system/)
- [Replacement Parts](https://www.agvise.com/product-category/soil-grinding-equipment/replacement-part-soil-grinding-equipment/)
- [Supplies](https://www.agvise.com/product-category/supplies/) - AGVISE Laboratories provides its customers with sampling supplies at no cost. By using the standardized forms, containers, and shipping supplies, you can receive quick analysis processing and turnaround at our laboratories. Please request only the supplies you will use this season.
- [Submission Forms](https://www.agvise.com/product-category/supplies/submission-forms/)
- [Bags and Containers](https://www.agvise.com/product-category/supplies/bags-and-containers/)
- [Shipping](https://www.agvise.com/product-category/supplies/shipping/)