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  1. 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 ...

  2. Mission

    https://students.cfaes.ohio-state.edu/about-us/mission

    in the College of Food, Agricultural, and Environmental Sciences at The Ohio State University leads ... life. Goal: To be the standard of excellence for colleges of agricultural and environmental sciences. We ...

  3. 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 ...

  4. 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 ...

  5. Micronutrients

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

    Most soils in the tri-state region contain adequate quantities of micronutrients. This is particularly ... rarely been observed in this region of the United States. Some soils, however, may be deficient in B, Cu, ... Both soil testing and plant analysis are useful in diagnosing micronutrient deficiencies. Relative to ...

  6. 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 ...

  7. 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 ...

  8. Phosphorus and Potassium

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

    on a build-up and maintenance approach. This framework strives to build soil test levels up to and ... three distinct recommendations based on soil test values: 1) build-up, 2) maintenance, and 3) drawdown. ... fertilizer to build soil test levels) if soils test below the critical level or are “deficient.” The ...

  9. Coffee with a Master Gardener Volunteer series

    https://greene.osu.edu/news/coffee-master-gardener-volunteer-series

    Please join the OSU Extension Greene County Master Gardener Volunteers at 2:30 Wednesday, August ... 5 th, Friday, August 7 th and Saturday August 8 th for “Coffee with a Master Gardener Volunteer” series. ... Garden “Using Worm Compost in the Garden” —Kathy Estabrook Resources: Worm Presentation Notes and ...

  10. 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 ...

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