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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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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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The Biology of Soil Compaction
https://ohioline.osu.edu/factsheet/SAG-10
flourishing bacteria populations that thrive on high oxygen levels in the soil and the release of nutrients in ... impact on bare soil and natural gravity combine to compact soils. Low organic matter levels make the soil ... binds microaggregates and macroaggregates in the soil. Low organic matter levels make the soil more ...
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Food Preservation: Pasteurization of Raw Milk for Home Consumption
https://ohioline.osu.edu/factsheet/hyg-5817
if it comes into contact with tainted water, soil, animals, or other contaminated sources. Outbreaks ... canner. Fill the canner with warm water until the water level is slightly above the milk level in the ... pasteurization of raw milk (SP 50-932). nifa.usda.gov/sites/default/files/resource/Milk-Pasteurization.pdf ...
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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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Controlling Undesirable Trees, Shrubs, and Vines in Your Woodland
https://ohioline.osu.edu/factsheet/f-45
a tree to interrupt the flow of sap between the roots and crown of the tree (Figure 1). The groove must ... 8 inches on very large-diameter trees. When a chainsaw is used to girdle, two horizontal cuts between 2–4 ... effective. Care must be taken when the herbicide is applied to minimize the amount that runs into the soil ...
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Food Preservation: Basics for Canning Vegetables
https://ohioline.osu.edu/factsheet/HYG-5344
methods can pose serious health risks. Understanding Clostridium botulinum Pressure canning is the only ... (USDA) endorsed recommendations present a risk of botulism. Even a taste of food containing this toxin ... processing. Add boiling water to the jars, leaving the headspace recommended in Table 2 between the jar rim ...
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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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Norovirus: A Different Type of Foodborne Illness
https://ohioline.osu.edu/factsheet/HYG-5569
Symptoms develop 12–48 hours after being exposed to norovirus and generally last between one and three ... and the number of cases that are not caused by contaminated food. Risk Factors Anyone can get ... contaminated. Someone who touches those surfaces and then handles food is at risk of contaminating the food or ...
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Growing Aronia (Aronia melanocarpa) in Ohio
https://ohioline.osu.edu/factsheet/anr-0157
it contains high levels of antioxidants. Studies have shown Aronia fruits to have protective benefits ... high tannin levels. The fruit is more palatable when used in processed foods. Aronia has been used in ... many states in between. Iowa is currently the leading state in Aronia production in terms of acreage ...