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Fall Forage Management
https://dairy.osu.edu/newsletter/buckeye-dairy-news/volume-26-issue-4/fall-forage-management
K 2 O. The recommended soil test ranges for phosphorus and potassium are 30 to 50 ppm and 120 to 170 ppm ... a high level of precision between sampling years so that you can accurately track your progress. Whether ... growth in the spring. We have to begin any soil discussion with a reminder to soil test. As you implement ...
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Elderberry Production in Ohio
https://ohioline.osu.edu/factsheet/anr-0110
Ensure ideal soil condition and fertility. Ideal nutrient conditions are a pH level of 5.5–6.5, 50 ... conditions for elderberries (pH level of 5.5–6.5, 50 lb/acre (25 ppm) of phosphorus, and 200–300 lb/acre ... lb/acre (25 ppm) of phosphorus, and 200–300 lb/acre (100–150 ppm) (Byers et al. 2012) as reported on ...
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Construction students get high-level training from Ohio CAT at the Digital Earthworks Sandbox
machine and helped each student as they tested out the equipment. "While we wouldn't usually be ...
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Ohio Data That Shaped the Tri-State Fertilizer Recommendations
https://ohioline.osu.edu/factsheet/agf-518
that very low soil test levels require high fertilizer rates, but as soil test levels increase, our ... able to answer the question, “At what soil test level should I apply fertilizer to see a yield ... response?” To answer this question, we need to establish a critical soil test level. For each trial, we ...
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Using Antibiotics on Your Dairy Farm? How to Monitor for Improved Practices
risk of infection or those with existing infections, such as high somatic cell counts (SCC). On some ... serious health issues. Responsible use of antimicrobials minimizes the risk of resistant infections, ... protects animal welfare, and improves treatment outcomes. Monitoring antibiotic use at the farm level is ...
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Nutrient Removal for Field Crops in Ohio
https://ohioline.osu.edu/factsheet/anr-96
manure equivalent at crop removal rates. Additionally, if soil test levels of P and K are below the ... critical level, then a "Buildup" recommendation would be considered to increase soil test levels ... soil test levels are at or above their respective maintenance limit, then no further P 2 O5 or ...
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Jay F. Martin
https://fabe.osu.edu/our-people/jay-f-martin
socio-economic analyses with stakeholder groups to investigate connections between downstream water quality and ... outreach projects 1) $18M USDA-NRCS study to evaluate the ability of high adoption rates of agricultural ... farmers, to identify fields with elevated nutrient levels where management practices will be installed and ...
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Nutrient Management of Forage Crops Intended for Hay
https://ohioline.osu.edu/factsheet/anr-0109
is to maintain soil test P and K between the “critical level” (minimum) and “maintenance limit” ... level before planting. The estimated amount of P 2 O 5 required to raise a soil test 1 PPM is 20 pounds ... For example, if a soil test is 100 PPM and the goal is to increase the soil test to a critical level ...
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Estimated Return-to-Seed of Variable vs. Uniform Corn Seeding Rates
https://ohioline.osu.edu/factsheet/agf-520
to predict or identify areas of consistent yield levels (high, medium, low) and stability (stable vs. ... 18,000 to 50,000 seeds per acre. Most studies in Ohio were planted between early May and early June, and ... profitability—can vary within and among fields with small differences in soils and weather. Given the advances in ...
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Calculating Cation Exchange Capacity, Base Saturation, and Calcium Saturation
https://ohioline.osu.edu/factsheet/anr-81
example of typical soil test levels in Ohio (in ppm). We can calculate the collective charge each cation ... by the soil test levels. For calcium, a soil test level of 2000 ppm, divided by 200 equals 10.0 ... (ppm) to meq/100 g soil for base and acid cations to determine CEC. Base Cation Soil test level (ppm ...