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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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Chlorinated Water Sanitation of Leafy Green Vegetables For Fresh Produce Processors
https://ohioline.osu.edu/factsheet/aex-262
sources to produce 200 ppm chlorinated water. Chlorine gas, stored in high-pressure vessels, can be ... 6.5. In large operations, where high levels of organic material and debris are present on the produce, ... granulated powder 65 or 68% free active chlorine high capital, high operation hazardous due to higher percent ...
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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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Fusarium Head Blight Forecasting System
https://ohioline.osu.edu/factsheet/plpath-cer-03
Red indicates high risk for scab exceeding 10% severity, yellow indicates moderate risk, while green ... indicates low risk. High scab risk is associated with high risk for grain contamination with vomitoxin, but ... reducing grain yield, test weight and grain quality. More importantly, F. graminearum produces mycotoxins, ...
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Fall Armyworm in Ohio Field Crops
https://ohioline.osu.edu/factsheet/ent-0093
strong winds. The wrong combination of events—unusually high early-season populations in the South, ... complete their development, they pupate (the transformation stage preceding moth emergence) in the soil ... during times of high adult colonization. For More Information For a good overall review of fall armyworm ...
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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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Herbicide Injury and the Problem of Spray Drift
https://ohioline.osu.edu/factsheet/anr-0137
but it has a high degree of uptake from the soil and is very persistent. Grape injury has been ... vineyard. Injury, however, may occur if the spray rate is too high when these herbicides are applied to soil ... may provide an acceptable level of weed control while minimizing the risk of severe grape injury as ...
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Gibberella Ear Rot and Mycotoxins in Corn: Sampling, Testing, and Storage
https://ohioline.osu.edu/factsheet/plpath-cer-04
steps. Semi-quantitative tests estimate vomitoxin at or above certain levels (>5ppm) or within a given ... (DON), also called vomitoxin. As a result, high levels of Gibberella ear rot severity and moldy grain are ... usually accompanied by high levels of vomitoxin. Mycotoxins are harmful to both humans and animals. ...
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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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Corn, Soybean, and Alfalfa Yield Responses to Micronutrient Fertilization in Ohio
https://ohioline.osu.edu/factsheet/agf-519
Micronutrient Deficiencies May Occur. Micronutrient Soil Crop Boron (B) Sandy soils or highly weathered soils ... Alfalfa. Diagnosing Micronutrient Deficiencies There is a large degree of uncertainty in using soil tests ... for monitoring soil micronutrient levels, as crop micronutrient availability is determined by complex ...