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Soil Phosphorus and Crop Response to Phosphorus Fertilizer in Ohio
https://ohioline.osu.edu/factsheet/anr-0146
responding to applied P can best be predicted by soil-test P levels. Recently, Culman et al. (2023) published ... 29.9% of trials, soybean in 14.2% of trials, and wheat in 36.8% trials. Critical soil test levels ranged ... Furthermore, the risk of yield loss with no P application decreased as the soil P level increased. As per the ...
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Understanding How Soil Test Phosphorus Impacts Water Quality
https://ohioline.osu.edu/factsheet/anr-0111
Soil test P is one indicator of environmental P loss potential from a field. STP values above 100 ppm ... Tests as Risk Indicators for Leaching of Dissolved Phosphorus from Agricultural Soils in Ontario. Soil ... called eutrophication, results in depleted dissolved oxygen in water bodies. A soil test for P (STP) ...
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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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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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Interpreting a Soil Test Report
https://ohioline.osu.edu/factsheet/agf-0514
suitability to grow a chosen crop. Phosphorous and potassium soil test levels help us know if fertilizer is ... values is needed if they are not reported as ppm using a Mehlich 3 soil test. Soil test values reported ... in pounds per acre are converted to ppm by dividing pounds per acre by 2. If phosphorus soil test ...
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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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Controlling Undesirable Trees, Shrubs, and Vines in Your Woodland
https://ohioline.osu.edu/factsheet/f-0106
a tree to interrupt the flow of sap between the roots and crown of the tree (Figure 1). The groove must ... 8 inches on very large-diameter trees. When a chainsaw is used to girdle, two horizontal cuts between 2–4 ... effective. Care must be taken when the herbicide is applied to minimize the amount that runs into the soil ...
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Food Preservation: Preserving Food With Less Sugar
https://ohioline.osu.edu/factsheet/hyg-5359
carbohydrates affect blood glucose levels more than any other nutrient, this fact sheet offers lower ...
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Schott gains firsthand experience during internship at CNH
https://fabe.osu.edu/news/schott-gains-firsthand-experience-during-internship-cnh
real-world situations. They ranged from field data analysis to preparing high-level presentations, giving him ... employees.” Schott’s internship experience comes amid a broader partnership between CNH and Ohio State ...
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Controlling Non-native Invasive Plants in Ohio’s Forests: Kudzu (Pueraria lobata)
https://ohioline.osu.edu/factsheet/anr-0158
spray mixture varies between applicators, but 40–80 gallons per acre is a consistent recommendation, ...