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  1. Nitrogen

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

    equipment considerations, and farmer preference. Nitrogen Rates for Corn Indiana, Michigan, and Ohio corn ... N rate recommendations (and those of Iowa, Illinois, Minnesota, and Wisconsin) are based on extensive ... N response trials conducted over several years in each state. These trials have determined the N rate at ...

  2. Executive Summary

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

    rate recommendations for corn are based on an economic model designed to maximize farmer profitability ... Tri-State Fertilizer Recommendations for Corn, Soybeans, Wheat, and Alfalfa: Crop removal rates were updated ... with current analyses of grain P and K concentrations. Nutrient removal rates per bushel of grain have ...

  3. Phosphorus Fertilizer Recommendations

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

    for pounds of P 2 O 5 per acre, not pounds of fertilizer per acre. Final fertilizer recommended rates ... points of the document, but lacking comprehensive detail. For complete information, please see the full ...

  4. Phosphorus and Potassium

    https://agcrops.osu.edu/node/3478

    a four-year period. For deficient soils, recommended rates of fertilizer should be applied annually. When ... K fertilizer rate in the build-up range. The new recommendations classify all loam and clay soils together (CEC ... >5 meq/100 g) into a consistent and simplified recommendation. P and K Crop Nutrient Removal Rates ...

  5. Potassium Fertilizer Recommendations

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

    fertilizer recommended rates in pounds of fertilizer per acre can be calculated by dividing the provided ... For complete information, please see the full version which we anticipate being available soon from  ...

  6. Tri-State Fertilizer Recommendations- Additional Resources

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

    Nitrogen Rate Calculator, cnrc.agron.iastate.edu Sawyer, John, Emerson Nafziger, Gyles Randall, Larry ... Bundy, George Rehm, and Brad Joern. 2006. Concepts and Rationale for Regional Nitrogen Rate Guidelines ... Removal Rates Culman, Steve, Phoo P. Zone, Nakian Kim, Anthony Fulford, Laura Lindsey, Peter Thomison, ...

  7. Calcium, Magnesium, and Sulfur

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

    rotating out of alfalfa to have depleted soil test K levels. Sulfur removal rates are listed in Table 29. ... points of the document, but lacking comprehensive detail. For complete information, please see the full ...

  8. Micronutrients

    https://agcrops.osu.edu/node/3476

    exist, Mehlich-3 extractable micronutrients likely relate meaningful information about availability of ... each nutrient and can be useful information to have. Summary of Micronutrient Trials A recent effort to ... granular or foliar formulations. All reputable fertilizers should be labeled for rate, spray volume, ...

  9. Soil Sampling, Handling, and Testing

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

    Sampling smaller areas (2.5 acres) with more soil cores (~15) provides more reliable information with ... information gathered. Soil samples should represent no more than 25 acres and be from a composite of no less ... approaches require a larger investment in soil testing but can provide more precise information to manage ...

  10. Tri-State Fertilizer Recommendations for Corn, Soybeans, Wheat, and Alfalfa

    https://agcrops.osu.edu/node/3485

    only the main points of the document, but lacking comprehensive detail. For complete information ... scientifically vetted nutrient management information to farmers in this region. The work was made possible ...

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