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  1. Tri-State Fertilizer Recommendations- Additional Resources

    https://agcrops.osu.edu/node/3487

    Jason. Soil Sampling Guidelines, Purdue Extension, extension.purdue.edu/extmedia/AY/AY-368-w.pdf ... soils.msu.edu/wp-content/uploads/2014/06/MSU-Nutrient-recomdns-field-crops-E-2904.pdf Michigan State University Soil and Plant Nutrient Lab, canr.msu.edu/spnl  Grove, John, Raymond ... Cooperative Extension Service. www2.ca.uky.edu/agcomm/pubs/agr/agr189/agr189.pdf Soil pH Warncke, Darryl, ...

  2. Soil PH and Lime Recommendations

    https://agcrops.osu.edu/node/3483

    Soil pH is one of the most important properties in determining the cycling and availability of ... soil nutrients. Soil testing regularly and applying lime to maintain recommended pH levels should be ... the first step growers take to assure crops have sufficient availability of nutrients. Soil pH should ...

  3. Soil Sampling, Handling, and Testing

    https://agcrops.osu.edu/node/3484

    extension.purdue.edu/extmedia/AY/AY-368-w.pdf   Michigan State University Soil Fertility and Plant Nutrition Resources: soil.msu.edu and ... The accuracy of a fertilizer recommendation depends on the quality of the soil sample collected ... and analyzed to produce a soil test value. Taking the time to collect a quality soil sample is the ...

  4. Potassium Fertilizer Recommendations

    https://agcrops.osu.edu/node/3480

    corn silage, and alfalfa for potassium below. Potassium recommendations differ for sandy soil (CEC ... <5 meq/100g) and loam and clay soils (CEC >6 meq/ 100g). The tables use CECs of 5 meq/100g or less ... for sandy soils and 15 meq/100g for loam and clay soils. For Michigan, subtract 20 lb K 2 O/ acre from ...

  5. Nitrogen

    https://agcrops.osu.edu/node/3482

    adds a new risk of not being able to apply N if soil conditions remain wet for too long. Growers need ... to balance these tradeoffs and adjust N management based on time, equipment constraints, soil ... type and timing of fertilizer applied. Anhydrous ammonia (AA) must be placed into the soil to capture ...

  6. Calcium, Magnesium, and Sulfur

    https://agcrops.osu.edu/node/3477

    but less likely to be added as fertilizer as N, P or K. Most soils in Indiana, Michigan, and Ohio ... adequately supply these nutrients for plant growth. A standard soil test measures the relative availability ... of Ca and Mg in soils. There is no accurate soil test for S at this time. A plant analysis is the ...

  7. Quick Reference Guide to Tri-State Fertilizer Recommendation Changes

    https://agcrops.osu.edu/node/3488

    What has changed? Why the change? Soil Sampling Sample every 3 to 4 years in a consistent way as ... the foundation for an adaptive nutrient management program. No changes. Details Soil pH and Lime ... Default soil test P and K levels now based on Mehlich-3. These recommendations are consistent with current ...

  8. Phosphorus Fertilizer Recommendations

    https://agcrops.osu.edu/node/3479

    for Corn, Soybeans, Wheat, and Alfalfa Executive Summary   |   Soil Sampling, Handling, and Testing ...   |   Soil pH and Lime Recommendations   |   Nitrogen   |   Phosphorus and Potassium   |   Calcium, ... points of the document, but lacking comprehensive detail. For complete information, please see the full ...

  9. Executive Summary

    https://agcrops.osu.edu/node/3486

    published in 1995 provide a solid framework for managing fertilizers and soil fertility. However, some ... Tri-State Recommendation Changes. Soil sampling remains a critical component of effective nutrient ... management. Sample soil in a consistent way every 3 to 4 years, with samples representing no more ...

  10. NRCS Seeks Comments on 590 Nutrient Management Standard Update

    https://agcrops.osu.edu/newsletter/corn-newsletter/2020-25/nrcs-seeks-comments-590-nutrient-management-standard-update

    the 4R approach as the basis to draw down high Phosphorus soils over time. The revised standard will ... newly revised Tri State Fertility Guide and are converted to the now standard Melich III soil test ... extraction method.-Developed a more defined path to draw down high soil test phosphorus fields.-Updated ...

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