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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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Disease Management
https://agcrops.osu.edu/node/4391
fungicide application, but the best fungicides only provide about 50 percent control of head scab and ...
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Precision University- Automating Agriculture: The Future of Farming
https://agcrops.osu.edu/events/precision-university-automating-agriculture-future-farming
available. Join us to learn about the potential benefits to your operation and the challenges and regulations ... the industry is facing. Please plan to join us for all three sessions! January 10th –Ag Automation in ...
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Agricultural Fertilizer Applicator Certification Training and Testing Option
this certification. If you have any questions about whether you are required to have a fertilizer ... electronic format for Ohio State University Extension Publication. A link to purchase the manual is ...