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  1. Gypsum for Agricultural Use in Ohio—Sources and Quality of Available Products

    https://ohioline.osu.edu/factsheet/anr-20

    to elevated levels. Unwashed FGD by-products can have levels of B sufficiently high to result in ... Professor The Role of Gypsum as a Soil Amendment— Gypsum is hydrated calcium sulfate (CaSO 4 • 2H 2 O), and ... is often marketed as a soil “conditioner” for improving soil “tilth.” Compared to most other ...

  2. Low Head Scab Risk Across Ohio: A May 23 Update

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-15/low-head-scab-risk-across-ohio-may-23-update

    However, according to the FHB risk tool (www.wheatscab.psu.edu), fields across the state are currently at ... low risk for head scab. This is likely because of the relatively low temperatures we have experienced ... over the last few days. The tool indicates that the risk for head scab development is low in fields ...

  3. Advances in High Throughput Phenotyping

    https://fabe.osu.edu/courses/fabeng-5335

    FABENG 5335 High-Throughput Phenotyping (HTP) is an emerging field that integrates remote sensing ... High Throughput Phenotyping provides an overview of the sensing and modeling tools that are being ...

  4. 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 ...

  5. Overview and Cost of a Small-scale Aquaponic Build at The Ohio State University

    https://ohioline.osu.edu/factsheet/anr-0105

    fish), the chances of something going wrong increases. Fish, bacteria, and plants require high ... harvested annually depend on your goals and tolerance for risk, species, size of species upon stocking, ... strong, although turnover rates for those in production 10+ years is likely high. Reasons for turnover may ...

  6. Bring on the Heat

    https://dairy.osu.edu/newsletter/buckeye-dairy-news/volume-24-issue-3/bring-heat

    cows have a pretty large threshold – between 25 and 65 degrees Fahrenheit – meaning that below 25 or ... heat stress. Because of daily variability in humidity and temperature, the temperature-humidity index ... every 1 mph increase in wind speed. High-volume, low-speed fans or box fans are both options depending ...

  7. Environmental Biophysics

    https://fabe.osu.edu/courses/fabeng-5330

    FABENG 5330 Environmental Biophysics provides an overview of the interactions between the physical ...

  8. Using Soil Tests Phosphorus Results to Identify Agronomic and Conservation Needs

    https://agcrops.osu.edu/newsletter/corn-newsletter/2020-30/using-soil-tests-phosphorus-results-identify-agronomic-and

    chance of more than 0.5 inches of rainfall. Soil Test Phosphorous (STP) values are above 50 PPM Mehlich ... water quality. Fields with Soil Test Phosphorus (STP) levels two to three times higher than the ... Between 20-40 PPM (or 30-50 PPM if wheat/alfalfa are in the rotation) Greater than 50 PPM More detailed ...

  9. Soybean Planting Progress and Vegetative Growth

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-15/soybean-planting-progress-and-vegetative-growth

    increases. Leaf area is measured as the leaf area index (LAI) or the acres of leaf area per acre of crop. ... beginning, and all of the leaf area the plant develops needs to stay healthy for yields to be high ... temperatures and cold soils alone can cause poor leaf color. Small plants have small root systems and acquire ...

  10. Recommendations for Soybeans Planted in June

    https://agcrops.osu.edu/2022-16/recommendations-soybeans-planted-june

    150,000 plants/acre. (For May planting dates, a final stand of 100,000 to 120,000 plants/acre is generally ...

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