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  1. Making Replant Decisions

    https://agcrops.osu.edu/node/4422

    beneath or at the soil surface (up until about the six-leaf collar stage). If new leaf growth appears ...

  2. Plant Populations and Seeding Rates

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

    State University research, optimum plant populations for silage are about 2,000 to 4,000 plants per acre ... moisture averaged about 24 percent on the first harvest date, 18 percent on the second harvest, and 17.5 ...

  3. Corn Growth and Development

    https://agcrops.osu.edu/node/4409

    tasselcompletely extended. A single plant can release ½ million or more pollen grains per day; silks receptive to pollen for about 10 days. R2 Blister 266 1686 Occurs   10-14 ... ear. R5 Dent – 1/2  milk line     Occurs about ... publication No. 6102, Rev. 2013  **Based on horizontal leaf method for staging plant growth (V/R-stage is ...

  4. The Ohio Natural History Conference

    https://ocvn.osu.edu/events/ohio-natural-history-conference

    location takes us to the Cincinnati Zoo & Botanical Garden and the Arc of Appalachia region for ...

  5. Growing Degree Day (GDD) Maturity Rating System

    https://agcrops.osu.edu/node/4413

    calculation method most commonly used for corn in the U.S. is the 86/50 cutoff method. GDD are calculated as ...

  6. Late Planting

    https://agcrops.osu.edu/node/4336

    for the first half of June are about 200,000 to 225,000 seeds per acre. For the last half of June, ... a four-day delay in planting delays physiological maturity about one day. In the last half of June it takes ... goes down and there is concern about whether late maturing varieties will mature metering to achieve ...

  7. How Climate Affects Corn Production

    https://agcrops.osu.edu/node/4407

    slowly at about 50 degrees Fahrenheit, the first spring planting dates usually begin when the average air ... corn is about 10-inches tall and the probability of freezing temperatures greatly decreases. The loss ... system. When plants are very small (prior to six-leaf collar stage), they generally are killed after about ...

  8. Date of Planting

    https://agcrops.osu.edu/node/4418

    conditions allow is usually safe. The latest practical date to plant corn ranges from about June 15 in ... to +38 percent. Averaged across site years, yields decreased about 11 percent. For five of the 14 ... planting. For each day that planting was delayed after May 1, the reduction in GDD requirement was about 6.5 ...

  9. Replanting

    https://agcrops.osu.edu/node/4338

    example: A stand count reveals that for most of the field there are about 1.5 plants per foot of 7.5-inch ... recommended seeding rate for the date on which the interseeding could take place, plus about 10 percent to ... seeds per foot of row or about 100,000 seeds per acre or 40 pounds of seed if there were 2500 seeds per ...

  10. Crop Rotation

    https://agcrops.osu.edu/node/4326

    indicate that a soybean crop following a crop other than soybeans will usually yield about 10 percent more ...

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