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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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Controlling Non-Native Invasive Plants in Ohio’s Forests: Garlic Mustard (Alliaria petiolata)
https://ohioline.osu.edu/factsheet/F-66
in soil for five or more years. It is important to remove as much root as possible since garlic ... not compost! Garlic mustard can also be cut a few inches above the soil surface just after the flower ... the size of the infestation, site conditions (topography, soil moisture, etc.), and access to and ...
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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 ...
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Sours receives Drake Institute grant for global sustainability instruction
https://fabe.osu.edu/news/sours-receives-drake-institute-grant-global-sustainability-instruction
academic programs, elevating them to the institutional level, and improve learning experiences for our ...
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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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Food Preservation: Basics for Canning Fruit
https://ohioline.osu.edu/factsheet/hyg-5343
they contain high enough acid levels to prevent the growth of Clostridium botulinum spores and the ... production of botulism toxin. Additionally, when properly canned fruits are heated long enough at high enough ... Check Table 2 for the correct amount of headspace to leave between the top of the fruit and the jar lid. ...
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Soil Sampling to Develop Nutrient Recommendations
https://ohioline.osu.edu/factsheet/AGF-513
over the entire field, changes in soil test levels in two areas over a 10-year period are shown. Table ... 1 ppm 20 8 2 20 8 2 20 8 2 Expected ppm change in soil test over 10 years 3 0 0 +5 +10-6-11 1 Crop ... to change soil test 1 ppm is 6–10 depending on cation exchange capacity. 3 Example calculation: ...
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Understanding Value in Lime
https://ohioline.osu.edu/factsheet/anr-9
soil test recommendation as a calcium carbonate equivalent basis and is specific for the crop, soil ... soil test calling for? Are you applying the correct amount of lime? Even with very few liming materials ... 99%. Calculations for Lime No. 5: Fineness Index = 0.2 (95–70) + 0.6 (70 – 50) + 1 (50) = 67 ENP ...
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NSF-funded center to drive development of US natural rubber industry
https://fabe.osu.edu/news/nsf-funded-center-drive-development-us-natural-rubber-industry
creating bridges between engineering, biology and agriculture, to revolutionize alternative natural rubber ... imports.” Disease and high demand threaten the tropical rubber tree Hevea brasiliensis, the world’s primary ... natural rubber source. In 2019, 10% of the natural rubber supply was lost to disease – and the risk for ...
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Choosing a Laboratory for Nutrient and Soil Health Testing
https://ohioline.osu.edu/factsheet/anr-0107
State University Extension Soil testing provides key information about soil nutrient availability. It is ... a complete picture of overall soil health. Farmers, gardeners, and landowners can use soil testing data to ... optimize their nutrient management plans. Implementing recommendations based on soil test data prevents ...