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  1. Fertilization

    https://agcrops.osu.edu/node/4389

    before planting when the soil-test level is below 50 ppm. Recommendations are determined by yield goal ... removal).  Yield  Potential  (bu/ac) Soil  CEC Soil-Test K  (ppm)     25 50 75 100 125 150 175 60       lb  ... ―Both Grain and Straw Removed.  Yield  Potential  (bu/ac) Soil  CEC Soil-Test K (ppm)     25 50 75 100 125 150 ...

  2. Alfalfa Weevil Activity is Beginning to Peak

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-10/alfalfa-weevil-activity-beginning-peak

    days (GDD) and reaches their peak feeding and damage when heat units for the area are between 325 and ... 1 Recheck in a week 9 50 >1 Spray 12 75 >2 Spray 16 100 >4 Harvest early   If alfalfa weevil ... pressure is high in a stand that is still short a pesticide treatment may be warranted. Consult the OSU and ...

  3. Lep Monitoring Network – Black Cutworm and True Armyworm Update # 3

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-13/lep-monitoring-network-%E2%80%93-black-cutworm-and-true-armyworm-update-3

    in 5 – 10 days, and larvae go through 6 instar stages over the next 28 – 35 days. Counties with high ...

  4. Same ol’ Farm Drainage Research? No, Think Future.

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-12/same-ol%E2%80%99-farm-drainage-research-no-think-future

    initiate monitoring of water table, soil moisture, temperature, and electrical conductivity. Additional ... spacing influence trafficability in the early growing season as well as soil moisture throughout the ... rotation, cover crop) on soil moisture availability, crop stress, crop yield, and economics?        How do ...

  5. Spring 2024 Weather & Soil Conditions: Update 2

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-09/spring-2024-weather-soil-conditions-update-2

    Figure 1: Daily average air temperature (dashed red), two-inch (green) and four-inch (blue) soil ... temperatures for spring 2024. Soil type and location of measurements (under sod or bare soil) are provided in ... located throughout the state. Daily average soil temperatures remained steady or fell slightly for most ...

  6. Fertilization Recommendations

    https://agcrops.osu.edu/node/4348

    Magnesium (Mg)  Soybeans require a minimum exchangeable soil test level of 200 and 50 ppm (400 and 100 ... Recommendations for Soybeans.    Yield   Potential   (bu/ac) Soil   test   (Bray   P) 30 40 50 60 70 ppm   (lb/ac) ... Cation Exchange Capacities (CECs) and Soil-Test Levels.  ​​​​​​     Yield Potential bu/  ac 30 40 50 60 ...

  7. Spring 2024 Weather & Soil Conditions: Update 1

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-08/spring-2024-weather-soil-conditions-update-1

    to mid 50s for daily averages (Figure 1). Soil temperatures should remain steady early this week, ... Soil Temperatures and Moisture   Figure 1: Daily average air temperature (dashed red), two-inch ... (green) and four-inch (blue) soil temperatures for spring 2024. Soil type and location of measurements ...

  8. Managing Phosphorus for Yield and Reduced Edge of Field Losses

    https://agcrops.osu.edu/newsletter/corn-newsletter/2019-35/managing-phosphorus-yield-and-reduced-edge-field-losses

    level. At 20 PPM or less, the risk of yield loss increases. Annual in season P nutrient application ... applications when STP is greater than 150 PPM. Follow NRCS 590 site and rate criteria between 40 to 150 PPM ... 8. 8. BMPs for high risk P loss sites: Monitor fields for P loss using the Ohio P risk index and ...

  9. 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 ...

  10. Lep Monitoring Network – Black Cutworm and True Armyworm Update # 2

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-12/lep-monitoring-network-%E2%80%93-black-cutworm-and-true-armyworm-update-2

    and larvae go through 6 instar stages over the next 28 – 35 days. Counties with high trap numbers ... rye cover crops. The eggs hatch and the feed on young corn plants. Counties with high trap numbers ...

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