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Converting between Mehlich-3, Bray P, and Ammonium Acetate Soil Test Values
https://ohioline.osu.edu/factsheet/anr-75
Bray P. When only soil test values in the agronomic range were considered (less than 50 ppm Bray P), ... relationships between Mehlich-3, Bray P, and Ammonium Acetate soil test extractants in the Tri-State Region. ... 3–1170 ppm, and Mehlich-3 K values ranged from 25–899 ppm. We examined relationships with all soil test ...
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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 ...
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Corn Silage Ear Rot and Foliar Disease Management
a high disease pressure with DON levels as high as 17.9 ppm in one hybrid and 30.3 ppm in the other ... leaf spot is favored by warm temperatures between 70 and 90°F and high relative humidity. Northern corn ... nutritionists encouraging levels below 1 ppm in corn utilized in the lactating ration. Fungicides may have the ...
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ANR-841-2E: Tobacco Sucker Control
https://ohioline.osu.edu/factsheet/anr-0841-2e
that have a longer duration between topping and harvesting. However, individual burley varieties may ... long. When To Use Before a systemic sucker-control chemical is used, plants should be topped when 50% or ... in the past discouraged purchases of burley tobacco by foreign buyers. Experiment station field tests ...
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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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Farms branching out: Expanding opportunities for agroforestry markets, connections, and conservation
Foundation to help support use of agroforestry practices and markets by small and medium sized farms in the ... opportunity to support synergy between forestry and agriculture professionals and landowners to expand use of ... project conducted in Michigan in 2022 demonstrated the need for better connections between professionals ...
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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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The 2023 Harmful Algal Bloom Research Initiative Report Released
https://senr.osu.edu/news/2023-harmful%C2%A0algal-bloom%C2%A0research-initiative-report-released
with projects led by SENR, including: Optimizing Manure Application Timing and Soil Health Testing to ... roles to play in finding solutions. Effect of Soil Properties on Leaching Potential and Crop Uptake of ...
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Graduate Exit Seminar- Danielle Bush
https://senr.osu.edu/events/graduate-exit-seminar-danielle-bush
Hall 245 or via Zoom. Danielle will present, "Possible connections between urban soil health and ... between community wellbeing and soil health may be important for overall community improvement but are ... unclear. Increasing our knowledge of past impacts on and the range of urban soil properties and placing ...
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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 keratoconjuctivitis 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 ...