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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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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 ...
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Sours and Vance to participate in university's first Sustainability Pedagogy Learning Community
participate in the first Sustainability Pedagogy Learning Community, coordinated through a partnership between ...
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Effects of Lime and Gypsum Application on Vegetable Yields and Nutrient Availability in Muck Soil
https://ohioline.osu.edu/factsheet/anr-0102
to keep organic soils at a target pH of 5.3 to minimize the risk of micronutrient deficiencies ... state that the optimal pH range of muck soils should be between 5.3 and 5.8, depending on the crop ... The application of lime had no effect on soil test phosphorus (P) or potassium (K) values, but the ...
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Gibberella Ear Rot and Mycotoxins in Corn: Sampling, Testing, and Storage
https://ohioline.osu.edu/factsheet/AC-52
screening steps. Semi-quantitative tests estimate vomitoxin at or above certain levels (>5 ppm) or within ... (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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Fertility Management of Meadows
https://ohioline.osu.edu/factsheet/anr-5
nutrition, forage test to check for adequate levels. When the soil pH is below 5.0, aluminum availability ... critical soil test level of 15-25 parts per million (ppm) phosphorus for Bray P1 test results or 28-40 ppm ... leaching. The critical soil test levels for potassium are 125-200 ppm. Plants have the ability to take up ...
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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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Conservation Tillage and Technology Conference
Paulding clay, considered the worst soil in NW Ohio. He has increased corn yields on it by 50 to 75 Bu/ac. ... Residue (from high-yielding corn): Mechanical, Chemical, and Biological.” He is sponsored by Calmer Corn ... sessions include: Soil Health, Cover Crops and No-till; Nutrient Management; Agronomic Crop ...
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Cross and Drewry publish article on remote diagnosis of wheat stripe rust progression
high-throughput classification of WSR severity. Utilizing random forest models based on leaf-level and ... canopy-level hyperspectral data, researchers achieved classification accuracies of 45-52%, which improved to ... 79-96% with off-by-one scoring. The canopy-level model outperformed the leaf-level models, highlighting ...
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Ammonia Emission from Animal Feeding Operations and Its Impacts
https://ohioline.osu.edu/factsheet/AEX-723.1
50 ppm, increased levels of keratoconjunctivitis and tracheitis have been observed. These trachea and ... causes high ammonia levels inside animal production buildings, especially in winter months when the ... concentrations. People begin to detect odors at 5–50 ppm. Irritation to mucous surfaces occurs at 100–500 ppm ...