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Potassium Uptake and Ohio Crop Response
https://ohioline.osu.edu/factsheet/anr-0147
a measure of the risk of yield loss at a given soil-test K level without fertilizer applied during the ... total K content of Ohio soils is between 12,500 ppm and 30,500 ppm (Ames & Gaither, 1913). Even ... yield. For loams and clays, this would be 170 ppm; for sandy soils, it is 130 ppm. The range of soil test ...
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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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Forage Testing for Beef Cattle
https://ohioline.osu.edu/factsheet/anr-0149
0.12% Mg. High soil potassium levels are associated with increased incidence of grass tetany. The ratio ... (ppm). If the forage contains a high level of molybdenum (2 ppm) or sulfur at 0.25%, Cu could be ... samples are low in Zn. The recommended levels for zinc are between 30 and 1,000 parts per million (ppm ...
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Corn Response to Long-Term Weather Stressors
https://ohioline.osu.edu/factsheet/anr-0150
early, it calculates the time needed for the soil to warm so crop planting can proceed with a lower risk ... these challenges through management decisions. Drought and High Temperatures An increased frequency of ... continue to increase, leading to variable soil moisture across the midwestern United States (Crimmins et ...
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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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Opportunities for Sub-surface Nutrient Placement in Ohio
https://ohioline.osu.edu/factsheet/fabe-56401
horsepower requirements, the level of tillage and soil disruption, depth of fertilizer placement, and ... while leaving the soil between these strips undisturbed. When the strip-till unit is equipped with ... leaving residue on the soil surface between the strips. Quicker spring soil warm-up compared to no-till ...
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Blacklegged (Deer) Tick, Ixodes scapularis
https://ohioline.osu.edu/factsheet/ent-0096
considered a statewide risk, though abundance may vary greatly across different habitats. Life Cycle, ... with high leaf-litter coverage, but may also include your own backyard, especially shaded areas of ... odh.ohio.gov/know-our-programs/zoonotic-disease-program/diseases/tickborne-diseases Lyme Disease, Centers for Disease Control and Prevention (CDC)— cdc.gov/lyme/index ...
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A Guide to Corn Growth and Development
https://ohioline.osu.edu/factsheet/anr-0148
maturity). Vegetative and reproductive stages of development are determined when 50% or more of the plants ... coleoptile emerges through the soil surface (Figure 2). The root system consists of the radicle (with branch ... roots) and seminal roots. The number of calendar days between planting and emergence varies and is ...
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Soil Acidity and Liming for Agronomic Production
https://ohioline.osu.edu/factsheet/AGF-505-07
is considered adequate if soil test levels are greater than 50 ppm (100 lb). Hi-cal (calcitic) lime ... ($50 hauling charge/60 acres). Summary In summary, make sure you obtain a soil test, determine if lime ... neutralization to raise the soil pH. High concentrations of hydrogen in soil solution (low soil pH) may cause the ...
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Phosphorus Nutrient Management for Yield and Reduced P Loss at Edge of Field
https://ohioline.osu.edu/factsheet/agf-509
site and rate criteria from Assessing Nutrient Loss Risk in Ohio (NRCS) between 50 to 200 PPM. Time ... step 7. STP value of 50 PPM Mehlich III or less: CROP YIELD —Reduce risk of crop yield losses with ... available. The maintenance STP range is "critical level" to 40 PPM in corn soybean rotation and 50 ...