Site

Search results

  1. Risk of Corn Grain Contamination with Vomitoxin in Ohio in 2024: Projection for the Weeks of July 21 and 29

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-24/risk-corn-grain-contamination-vomitoxin-ohio-2024-projection

    growth stage between July 21 and August 4 are at high risk of being contaminated with at least 1 ppm ... As more data are collected, models will be developed to predict the risk of higher levels of ... contamination (2 ppm, 5 ppm, etc etc). More information on vomitoxin risk assessment and management in corn can ...

  2. Risk of Corn Grain Contamination with Vomitoxin in Ohio in 2024: A July 15th Projection

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-23/risk-corn-grain-contamination-vomitoxin-ohio-2024-july-15th

    stage between July 13 and July 19 are at high risk of being contaminated with at least 1 ppm DON. ... is to scout fields that pollinate during high-risk times for GER and plan to harvest those fields ... As more data are collected, models will be developed to predict the risk of higher levels of ...

  3. Phosphorus Nutrient Management for Yield and Reduced P Loss at Edge of Field

    https://ohioline.osu.edu/factsheet/agf-509

    site and rate criteria from Assessing Nutrient Loss Risk in Ohio (NRCS) between 50 to 200 PPM. Time ... step 7. STP value of 50 PPM Mehlich III or less: CROP YIELD —Reduce risk of crop yield losses with ... available. The maintenance STP range is "critical level" to 40 PPM in corn soybean rotation and 50 ...

  4. Risk of Corn Grain Contamination with Vomitoxin in Ohio in 2024: July 8 Projection

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-22/risk-corn-grain-contamination-vomitoxin-ohio-2024-july-8

    with ≥ 1 ppm DON. However, this prediction does not guarantee lower or higher DON than levels set by ... high-risk times for GER and plan to harvest those fields early.   These models are the first step towards ... least 1 ppm DON, meaning that based on data collected so far, the models are correct about 8 out of 10 ...

  5. Potassium Uptake and Ohio Crop Response

    https://ohioline.osu.edu/factsheet/anr-0147

    a measure of the risk of yield loss at a given soil-test K level without fertilizer applied during the ... total K content of Ohio soils is between 12,500 ppm and 30,500 ppm (Ames & Gaither, 1913). Even ... yield. For loams and clays, this would be 170 ppm; for sandy soils, it is 130 ppm. The range of soil test ...

  6. Soil Phosphorus and Crop Response to Phosphorus Fertilizer in Ohio

    https://ohioline.osu.edu/factsheet/anr-0146

    responding to applied P can best be predicted by soil-test P levels. Recently, Culman et al. (2023) published ... 29.9% of trials, soybean in 14.2% of trials, and wheat in 36.8% trials. Critical soil test levels ranged ... Furthermore, the risk of yield loss with no P application decreased as the soil P level increased. As per the ...

  7. Understanding How Soil Test Phosphorus Impacts Water Quality

    https://ohioline.osu.edu/factsheet/anr-0111

    Soil test P is one indicator of environmental P loss potential from a field. STP values above 100 ppm ... Tests as Risk Indicators for Leaching of Dissolved Phosphorus from Agricultural Soils in Ontario. Soil ... called eutrophication, results in depleted dissolved oxygen in water bodies. A soil test for P (STP) ...

  8. Check Roots for Soybean Cyst Nematode: What’s Your Number?

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-24/check-roots-soybean-cyst-nematode-what%E2%80%99s-your-number

    to 50 paces. Carefully remove soil from the roots (a water bucket can help) and look for SCN females ... resistant varieties (a shift in virulence). Maintaining low SCN levels is much easier than reducing high ... process up to two soil samples per grower for SCN testing, free of charge [read more here]. Share your ...

  9. 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 ...

  10. Regional Crop Updates: July 16-22

    https://agcrops.osu.edu/newsletter/corn-newsletter/2024-24/regional-crop-updates-july-16-22

    highly variable, with some areas receiving near normal levels and others remaining very dry. Lack of soil ... ranging from VT (tassel) to R2 (blister) with low levels of tar spot reported. Soybean is in fair ... McMichael of OSU Extension Mercer County reported that most counties in the region have adequate soil ...

Pages