Site

Search results

  1. Crop Water Use in Corn – What Do We Know?

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-23/crop-water-use-corn-%E2%80%93-what-do-we-know

    this point in the season. Crop water use is a significant factor in obtaining high yields (Figure 2). ... consists of two components: water losses from the soil (evaporation) and water losses from the crop ... is through transpiration (direct losses of water from soil evaporation are much lower as most light ...

  2. Wheat Management for Fall 2021

    https://agcrops.osu.edu/newsletter/corn-newsletter/2021-30/wheat-management-fall-2021

    phosphorus than corn or soybean, and soil test levels should be maintained between 30-50 ppm (Mehlich-3 P) ... for optimum production (Table 1). Do not add any phosphorus if soil test levels are higher than 50 ... 45 60 75 >50 0 0 0 0 Soil potassium should be maintained at levels of 100-130 and 120-170 ppm ...

  3. Other Corn Ear Abnormalities – when and why do they develop?

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-24/other-corn-ear-abnormalities-%E2%80%93-when-and-why-do-they-develop

    drought, high temperatures, pollination issues, phosphorus shortages, herbicide injury, cloudy days ... developmental stages. (a) Mature pinched ear due to sulfonylurea herbicide applied between V7 and V10 stages, ... ears with various severity levels of damage. Images: Robert Nielsen. 6. Incomplete kernel set Figure 6. ...

  4. Ohio Data that Shaped the Tri-State Fertilizer Recommendations

    https://ohioline.osu.edu/factsheet/agf-518

    that very low soil test levels require high fertilizer rates, but as soil test levels increase, our ... able to answer the question, “At what soil test level should I apply fertilizer to see a yield ... response?” To answer this question, we need to establish a critical soil test level.  For each trial, we ...

  5. Managing Corn and Nitrogen with Water Excess Conditions

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-19/managing-corn-and-nitrogen-water-excess-conditions

    affected by excess water. Additionally, some research suggests a connection between soil potassium (K) ... levels and N uptake, so ensuring soils are not limiting for K is important to optimize N uptake. We are ... frequency and intensity over the past 50 years, making farming more challenging. Not new to Ohio, wet ...

  6. Plant Forage Stands as Soon as Feasible

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-10/plant-forage-stands-soon-feasible

    test levels are not present, or you don’t even have a recent soil test, we recommend making corrective ... Soil phosphorus should be at least 20 ppm for grasses and 30 ppm for legumes, while minimum soil ... potassium should be 100 ppm for sandy soils less than 5 CEC or 120 ppm on all other soils. If these soil ...

  7. Lep Monitoring Update

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-25/lep-monitoring-update

    Lep Monitoring Update WBC Numbers Remain High in Many Northern Ohio Counties Bridger Cline, Jessi ...

  8. Gibberella Ear Rot and Mycotoxins in Corn: Sampling, Testing, and Storage

    https://ohioline.osu.edu/factsheet/AC-52

    screening steps. Semi-quantitative tests estimate vomitoxin at or above certain levels (>5 ppm) or within ... several mycotoxins, including deoxynivalenol (DON), also called vomitoxin. As a result, high levels of ... Gibberella ear rot severity and moldy grain are usually accompanied by high levels of vomitoxin. Figure 1. ...

  9. Use of a Brown Mid-Rib Sorghum x Sudangrass Hybrid in a Small Ruminant Parasite Control Program

    https://ohioline.osu.edu/factsheet/VME-30

    maintained between 6.0 and 6.5 for best results. Critical levels of soil phosphorus and potassium are 15 ppm ... forages. They need to be planted into warm soils that are between 60 and 65°F. At these soil temperatures, ... will tolerate soil pH levels of 6.0 and lower, the Ohio Agronomy Guide recommends that soil pH be ...

  10. Drainage Installation Field Day

    https://agcrops.osu.edu/events/drainage-installation-field-day

    and OSU Extension;in cooperation with USDA-NRCS, USDA-ARS, Soil and Water Conservation Districts, ...

Pages