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Soils and Soil Health
https://ohioline.osu.edu/factsheet/anr-0136
nutrients air—2%–50% of soil volume oxygen, carbon dioxide, nitrogen occupies same spaces between soil ... bad, or mid-level soil test results to compare against. The Ohio State University has conducted a vast ... nutrients—aka “potential for productivity” water—2%–50% of soil volume water-holding capacity is directly ...
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Corn Growing Degree Days: A Method of Maturity Rating For Hybrids
https://ohioline.osu.edu/factsheet/agf-101
different scenarios; it provides county-level estimates based on historical GDDs accumulation, planting ... calculated in several ways, the most used method is to subtract 50 degrees Fahrenheit from the mean daily ... temperature. This method of calculating GDD is often called the “86/50 corn system.” This GDD calculation ...
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Produce Safety and Flooded Fields
https://ohioline.osu.edu/factsheet/anr-27
is considered a high risk to produce safety and quality. There are two types of water events that ... the floodwaters crest and recede. Considered high risk. Pooling: Standing water. Occurs after rain or ... considered high risk to produce safety. The bottom line: Floods adulterate produce. Under FDA guidance, ...
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Global Climate Change: Update 2020
https://ohioline.osu.edu/factsheet/cdfs-203
at between 280 and 300 parts per million (PPM). The data also show that during our present ... episode that is currently ongoing. The duration of these cold periods tends to be between 20 and 40 ... between 10,000 and 20,000 years ago. This temperature data is presented in Figure 3. This graph shows that ...
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Abnormal Ears in Corn—When and Why Do They Develop?
https://ohioline.osu.edu/factsheet/anr-0139
reducing productivity and spurring research about the underlying causes. Distinct differences exist between ... fields averaged 26% of abnormal ears, with abnormal ear production ranging between 12 and 49% (that is 12 ... conditions driven by unfavorable growing conditions (environment), susceptible hybrids (genetics), high or ...
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Feeding Horses
https://ohioline.osu.edu/factsheet/anr-6
(from forage analysis) 1.07 15.4 0.94 0.41 Pelleted Grain (from feed tag) 1.50 12.0 0.75 0.85 ... we need to substitute grain for hay to raise the energy. 1.50 Mcal/lb DE of grain – 1.07 Mcal/lb DE ... source of sulfur. Excessively high levels of sulfur depress copper absorption. Sulfur is also found in ...
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Understanding Soil Microbes and Nutrient Recycling
https://ohioline.osu.edu/factsheet/SAG-16
and the microbes and soil organisms habitat are destroyed. In a no-till field, high levels of SOM are ... Bacteria 10 8 –10 9 40–500 Actinomycetes 10 7 –10 8 40–500 Fungi 10 5 –10 6 100–1500 Algae 10 4 –10 5 1–50 ... nutrients. Consider the following three scenarios. Soils typically turnover 1 to 3 percent of their nitrogen ...
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Potassium
https://ohioline.osu.edu/factsheet/hyg-5588
recommended potassium levels may be influential in glucose control and the risk of diabetes. Potassium ... indicates increasing potassium creates a protective effect against hypertension (high blood pressure). The ... muscles contract—including your heart—and helps with nerve function. Consuming a high potassium diet has ...
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Tools for Estimating Winter Malting Barley Grain Yield
https://ohioline.osu.edu/factsheet/anr-95
However, heaving and saturated soils caused by freeze-thaw cycles from temperature fluctuations, typical of ... potential (Zhong, et. al., 2019 & Dicksen et. al., 1979). Simple visual estimation or the “eye test ... The average stem count for a field is 50, the count would fall in the 41-60 stem count range, relating ...
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Grain Quality Attributes of TopCross® High Oil, High Lysine, Waxy, and Conventional Yellow Dent Corns
https://ohioline.osu.edu/factsheet/agf-137-99
Field tests were conducted in 1997 to compare the grain quality and agronomic performance of high oil ... acid levels were greater and linoleic and linolenic acid levels lower in TopCross high oil grain than ... differed among corn types. Lysine levels were greatest in the high lysine corn (0.33-0.37%) followed by the ...