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  1. Keep In Mind Soil Test K And pH Are Affected By Low Soil Moisture

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-37/keep-mind-soil-test-k-and-ph-are-affected-low-soil-moisture

    test potassium (K) levels because K still remains in the crop residues and/or low soil moisture caused ... POTASSIUM Typically soil test K levels are lower than expected in a dry fall. One factor contributing to low ... in soil test K with soil moisture. When field moist soil high in K is dried for analysis, soil test ...

  2. 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 ... (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. Mycotoxins are harmful to both humans and animals. ...

  3. Fall is the Best Time to Sample for Soybean Cyst Nematode (SCN)

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-37/fall-best-time-sample-soybean-cyst-nematode-scn

    a soil test will reveal if SCN is present and at what levels. Knowing your SCN numbers in fall will give ... visible symptoms. To know if the nematode is present in a field, soil sample for SCN testing must be ... planning to collect samples for soil fertility, a subsample can be used for SCN testing! After harvest, ...

  4. Ohio Certified Crop Adviser Pre-Exam Preparation Class

    https://agcrops.osu.edu/events/ohio-certified-crop-adviser-pre-exam-preparation-class

    for the test by covering basic principles in the four competency areas – nutrient management, soil and ...

  5. 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 ...

  6. Converting between Mehlich-3, Bray P, and Ammonium Acetate Soil Test Values

    https://ohioline.osu.edu/factsheet/anr-75

    Bray P. When only soil test values in the agronomic range were considered (less than 50 ppm Bray P), ... relationships between Mehlich-3, Bray P, and Ammonium Acetate soil test extractants in the Tri-State Region. ... 3–1170 ppm, and Mehlich-3 K values ranged from 25–899 ppm. We examined relationships with all soil test ...

  7. Harvesting and Handling Ear Rot-Affected Corn

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-34/harvesting-and-handling-ear-rot-affected-corn

    Consequently, ethanol plants may reject GER-affect grain with high levels of vomitoxin. Slow grain dry-down, ... being lost. When vomitoxin levels are unacceptably high, close your reclean all the way and even block ... levels around 26 ppm in samples of the screenings coming from our perforated screens, while the grain ...

  8. Online Webinar- New Pesticide Applicator Training- April 12, 2023

    https://pested.osu.edu/events/online-webinar-new-pesticide-applicator-training-april-12-2023

    Ornamental Weed Control (Category 6c). Attendees will choose between Industrial Vegetation (Category 5) and ... Turf (Category 8). No testing is available at the conclusion of this course. Contact the ODA to ... permitted to make 6c applications. 8- Turf-  The application of pesticides to lawns, turf, sod, or to soil ...

  9. Winter Application of Manure

    https://agcrops.osu.edu/newsletter/corn-newsletter/2022-40/winter-application-manure

    Western Lake Erie Basin (WLEB) watershed, the application of manure to frozen and snow-covered soils ... manure application in the WLEB is a weather forecast saying “not greater than a 50% chance of a half inch ...

  10. Zhenhao (Leo) Guan

    https://southcenters.osu.edu/people/zhenhao-leo-guan

    Zhenhao (Leo) Guan Research Assistant II guan.418@osu.edu Soil and Bioenergy ...

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