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Fertility Recommendations
https://agcrops.osu.edu/node/4423
cnrc.agron.iastate.edu/ . The background and justification for this approach is laid out in this regional publication ... : extension.iastate.edu/Publications/PM2015.pdf. Phosphorus and Potassium Application Methods Phosphorus and potassium are more straightforward ... agcrops.osu.edu/publications/tri-state-fertility-guide-corn-soybean-wheat-and-alfalfa and cnrc.agron.iastate.edu. Crop Rotations The corn-soybean rotation is by far the most common ...
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Tillage
https://agcrops.osu.edu/node/4327
aede.osu.edu/about-us/publications/ohio-farm-custom-rates-2016 **Based on corn, soybean and wheat prices of $3.80, $8.85 and $4.60 per bushel, respectively. ...
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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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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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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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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 ...
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Don't Fear The Fall
https://wayne.osu.edu/news/dont-fear-fall
What I remember most about the fall was that it happened so suddenly. One minute I was walking ...
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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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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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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 ...