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  1. Nitrogen

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

    N fertilizer represents a large fraction of the total cost of production. Unfortunately, N is the one of the ... most challenging nutrients to manage in field crops. A primary challenge for farmers is to provide ... N fertilizer application. Nitrogen should be applied to coincide with crop demand and uptake to the extent ...

  2. Executive Summary

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

    decade to validate and refine the guidelines. In general, the fertilizer recommendations originally ... K fertilizer management has been updated to reflect current economic and soil sampling realities. Build-up ... Tri-State Fertilizer Recommendations for Corn, Soybeans, Wheat, and Alfalfa: Crop removal rates were updated ...

  3. 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

    recommendations.-Updated nutrient assessment procedures and tools identified to help farmers reduce risk of phosphorus loss ... need to both protect Ohio’s water resources and agricultural industry, and the need to develop ... something that was responsible yet practical, simple, and economical for Ohio’s farmers to adopt.” A broad ...

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

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

    States label and regulate liming materials differently. Details Nitrogen Fertilizer Recommendations Corn ... N recommendations are now based on economic model to maximize profitability. Fluctuating grain and fertilizer prices ... necessitate a focus on economics in addition to yield. Details Wheat N recommendations have been updated. They ...

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

    https://agcrops.osu.edu/FertilityResources/tri-state_info

    This website provides a summarized version of the Tri-State Fertilizer Recommendations, reporting ... Vitosh, J.W. Johnson and D.B. Mengel. Acknowledgements The Tri-State Fertilizer Recommendations for Corn, ... in this region also underscore the need to manage nutrients as judiciously and profitably as ...

  6. Tri-State Fertilizer Recommendations- Additional Resources

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

    Original 1995 Tri-State Fertilizer Recommendations Vitosh, M.L., J.W. Johnson, and D.B. Mengel. ... 1995.  Tri-State Fertilizer Recommendations for Corn, Soybean, Wheat, and Alfalfa. Extension Bulletin ... E-2567.  agcrops.osu.edu/publications/tri-state-fertility-guide-corn-soybean-wheat-and-alfalfa Soil ...

  7. Micronutrients

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

    region. The lack of yield responses in micronutrient fertilization trials is a major limitation to ... lower the soil test, the more micronutrient fertilizer is needed to correct a deficiency. Micronutrient ... micronutrient fertilizers should be used judiciously and with care. Some micronutrient fertilizers can be toxic ...

  8. Phosphorus and Potassium

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

    The new tri-state fertilizer recommendations use a similar but simplified framework. The major changes ... a crop will need P or K fertilizer. When soil test levels are above the critical level and therefore in ... Build-up and Maintenance Framework The tri-state fertilizer recommendations for P and K are based ...

  9. Soil Sampling, Handling, and Testing

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

    Fertility Resources: agcrops.osu.edu/fertilityresources Purdue Extension Soil Sampling Guidelines ... The accuracy of a fertilizer recommendation depends on the quality of the soil sample collected ... : extension.purdue.edu/extmedia/AY/AY-368-w.pdf Michigan State University Soil Fertility and Plant Nutrition Resources: soil.msu.edu and ...

  10. 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 ... in pounds of fertilizer per acre can be calculated by dividing the provided nutrient recommendation ... by the percent concentration of that nutrient in the fertilizer. For example, potash fertilizer ...

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