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  1. Grapevine Nutrient Management: Petiole Sampling and Analysis

    https://ohioline.osu.edu/factsheet/hyg-1438

    availability. However, there is a poor relationship between soil and plant nutrient levels. While a soil may be ... adequate levels of another nutrient while the soil test indicates a deficiency. This poor relationship may ... Manganese (Mn) 25–1,000 ppm 3 31–150 ppm Iron (Fe) 30–100 ppm 31–50 ppm Copper (Cu) 5–15 ppm 5–15 ppm Boron ...

  2. Plant Populations and Seeding Rates

    https://agcrops.osu.edu/node/4421

    For fields with very productive soils and exceptionally high yield potential, final stands greater ... planting above recommended rates (unless lodging becomes more severe at higher population levels).  Plant ... there may be little benefit from using high plant populations much above 30,000 plants per acre. ...

  3. Weather Update: Coldest Christmas in Decades?

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-42/weather-update-coldest-christmas-decades

    Southern counties have picked up between 1-2.5” over this period, helping to ease some of the drought ... please visit the State Climate Office of Ohio.   Forecast High pressure will keep tranquil weather in ... place for Ohio through Wednesday. Temperatures will slowly modify from highs in the 20s and 30s on ...

  4. Plan Now for Fall Fertilization of Perennial Forages

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-26/plan-now-fall-fertilization-perennial-forages

    When soil test P exceeds the agronomic level of 50 PPM, there is increased  potential of P losses into ... For example, many dairies have high levels of soil P, making the expense of fertilizer P unnecessary. ... over-application harms the environment and can harm animals fed those forages. A recent soil test should always ...

  5. Days to Maturity Rating System

    https://agcrops.osu.edu/node/4412

    reflect actual calendar time between planting and maturity―a 106-day hybrid, for example, does not ... a group of hybrids for grain moisture at harvest. A one day maturity difference between two hybrids is ... same day (6 days multiplied by 0.5 or 0.75).  The relationship between days to maturity and kernel ...

  6. Undergraduate Summer Research Experiences

    https://grad.cfaes.ohio-state.edu/future-students/opportunities-undergraduates/summer-research-experiences

    SROP is a collaboration between the  Big Ten Academic Alliance. Participants at The Ohio State ... motivated graduating high school seniors and current underclassmen at college or university over the age of 18. ORIP is ...

  7. Specialty Corns

    https://agcrops.osu.edu/node/4426

    method produces more gallons of ethanol per bushel of corn grain. Hybrids with high levels of extractable ... The type of corn most widely planted in Ohio and across the U.S. is yellow dent. High grain and ... silage yield potential, high feed value, and availability of adapted superior hybrids account for the ...

  8. Developing Phosphorus and Potassium Recommendations for Field Crops

    https://ohioline.osu.edu/factsheet/AGF-515

    + (0.05 x CEC))] + (YP x CR) + 20 CL is the critical level (100 ppm at a CEC of 10), STL is the soil test ... test results are based on soil calibration studies that correlate soil test levels to crop yield ... crop (buildup stage). Once soil test values reach the critical soil test level, a maintenance approach ...

  9. Conservation Tillage Club Breakfast

    https://agcrops.osu.edu/events/conservation-tillage-club-breakfast-0

    information about their fields’ soil variation and associated cropping practices to create prescription maps ...

  10. Interpreting a Soil Test Report

    https://ohioline.osu.edu/factsheet/agf-0514

    suitability to grow a chosen crop. Phosphorous and potassium soil test levels help us know if fertilizer is ... values is needed if they are not reported as ppm using a Mehlich 3 soil test. Soil test values reported ... in pounds per acre are converted to ppm by dividing pounds per acre by 2. If phosphorus soil test ...

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