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Growing Degree Day (GDD) Maturity Rating System
https://agcrops.osu.edu/node/4413
progress of the crop through the growing season, and aids in planning harvest schedules. The GDD ... rates of corn do not increase above 86 degrees Fahrenheit. Growth at the low temperature cutoff (50 ... corn hybrid requires a certain number of accumulated GDDs to reach maturity. Most seed corn dealers ...
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Fertility Recommendations
https://agcrops.osu.edu/node/4423
production can be challenging to manage effectively. Fall application of nitrogen is not recommended, but if ... nitrogen is to be applied in the fall, make certain that soil temperatures are below 50 degrees Fahrenheit ... fall, the risk of loss is high due to leaching. Application of nitrogen in the spring is more efficient ...
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Drones for Spraying Pesticides
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-05/drones-spraying-pesticides
technology from pesticide applicators is steadily increasing. A variety of names and the acronyms are ... data collection to increase profitability in crop production. Drones successfully and effectively ... harvest. With the help of fast and accurate GPS or GNNS technology, a high-resolution camera, and variable ...
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Insect Control
https://agcrops.osu.edu/node/4379
limitation, waiting period required (in days) prior to harvest or foraging. * Use is restricted to certified ... generation will again appear in early July and continue until fall as a succession of first and second ... increases. Heavily infested leaves may also have light webbing similar to spider webs. Vegetation can be ...
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Date of Planting
https://agcrops.osu.edu/node/4418
Ohio, April 10 to May 10. Approximately 100 to 150 GDDs (heat units) are required for corn to emerge. In ... first week of May. Grain yield and test weight were increased by early plantings, whereas grain moisture ... was reduced, thereby allowing earlier harvest and reducing drying costs. Early planting generally ...
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How Climate Affects Corn Production
https://agcrops.osu.edu/node/4407
temperatures do not fall below the mid-30s; radiational cooling can lower leaf temperatures to several degrees ... maturity (black layer formation) in the fall, sugars usually continue to move from the stalk into the ear. ... However, yields are generally lower, and harvest moisture may be high because of high grain moisture at the ...
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Disease Management
https://agcrops.osu.edu/node/4391
fields. Planting wheat after other small grain crops, such as barley, may also increase the risk of some ... phosphorus, nitrogen, and potassium in the fall for vigorous root and seeding growth. Spring topdress with ... nitrogen at the rate recommended to achieve the yield goal. Excessive nitrogen increases the severity of ...
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Corn Growth and Development
https://agcrops.osu.edu/node/4409
Maturity Dates for Delayed Plantings. Corny News Network, Purdue Extension. [online] ... kingcorn.org/news/timeless/RStagePrediction. html and Nielsen, R.L. 2016. Grain Fill Stages in Corn. Corny News Network, Purdue Extension. ... [online] kingcorn.org/news/timeless/GrainFill.html. Table 4-5 lists estimated yield loss resulting from ...
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Time to stock up on nozzles now! But do you know which one to buy?
efficacy, minimize spray drift, and allow compliance with label requirements such as application rate ... (gallons per acre) and spray droplet size. Selecting the best nozzle requires careful consideration of many ... rate required for any given set of application parameters, and identify a specific set of nozzle ...
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Conservation Tillage and Technology Conference
https://agcrops.osu.edu/events/conservation-tillage-and-technology-conference-1
CCAs, experience new ideas, and increase your net income. David Hula, the Corn Yield Champion (4 years!) ...