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Grapevine Nutrient Management: Petiole Sampling and Analysis
https://ohioline.osu.edu/factsheet/hyg-1438
availability. However, there is a poor relationship between soil and plant nutrient levels. While a soil may be ... adequate levels of another nutrient while the soil test indicates a deficiency. This poor relationship may ... Manganese (Mn) 25–1,000 ppm 3 31–150 ppm Iron (Fe) 30–100 ppm 31–50 ppm Copper (Cu) 5–15 ppm 5–15 ppm Boron ...
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Developing Phosphorus and Potassium Recommendations for Field Crops
https://ohioline.osu.edu/factsheet/agf-0515
determined using field studies to correlate soil test levels to crop yield response. Ohio data was used to ... This framework strives to build soil test levels up to and beyond a critical level, and then maintain ... these levels over time. The critical level is a key component to this framework. Soil test levels above ...
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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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TARDISS
https://fabe.osu.edu/node/11065
creating bridges between engineering, biology, and agriculture, to revolutionize alternative natural rubber ...
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Chris Galbraith
https://agnr.osu.edu/people/chris-galbraith
in weed management, soil biology, market gardening, and other areas of commercial vegetable ...
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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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Soil Testing
https://franklin.osu.edu/program-areas/agriculture-and-natural-resources/soil-testing
The Franklin County Extension office now has soil testing kits available for sale. Testing is ... calcium by the Mehlich 3 (ICP) test. The final report includes the chemical analysis of the soil along ... copper and sulfur are also reported. Analysis is done at a non-biased university soil testing laboratory ...
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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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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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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 ...