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Agronomy Notebook



Soil compaction and soil health

What are the causes of soil compaction? Soil compaction is one of the most important factors that can affect soil health and reduce crop yields. In the early 1980s, Purdue University soil scientist Gary Steinhardt and Ohio State University Ag Engineer Randall Reeder were making farmers aware of the compaction …

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Managing crop residue

Corn growers know the satisfaction of seeing newly emerged, uniform rows of green corn plants set against the backdrop of dark, rich soils. By contrast, it can be painful to see an uneven stand from the truck window when driving past a field. The cause of an uneven stand could …

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How deep should you plant?

Just when we thought we knew virtually everything about growing corn, scientists keep on finding new things about growing this amazing crop. Most farmers plant corn seed between 2 to 2.5 inches deep. However, new evidence suggests that we should be planting corn seed even deeper. • Research studies conducted …

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What factors affect test weight?

Many things can affect test weight. Some of the important factors that can influence test weight are listed below: • Genetics of the hybrid plays an important role in test weight of the grain. Planting hybrids with genetic potential for higher test weight will generally yield grain with higher test …

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Time to consider fall weed control

It seems that fields with weed problems are more of the exception rather than the rule this growing season. Herbicide resistant weeds are also a growing problem. To address the issue, some farmers are stepping up their weed control efforts to try and stay ahead of the problem. “I think …

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Turning corn trash into treasure

As harvest continues around Ohio is it no secret that many growers are seeing strong numbers on the yield monitors, with many of the readings pushing the 200-bushel mark. That is, of course, great news for farmers around the state, but it does bring some things to think about for …

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New process for estimating soybean yields

Soybean producers can easily get an idea of the yield potential of their crops with a Purdue Extension soybean specialist’s calculation method. Soybean yield potential is built on many factors, including the genetics selected, management decisions during the season and the weather. Yield components of soybeans are pods, seed size …

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Corn pre-harvest considerations

Across Ohio, the corn crop in general is set up for high yields based largely on ample amounts of precipitation and moderate temperatures during most of the 2013 growing season. Lately, rainfall has been at a premium with some areas receiving adequate moisture and others needing a good shower to …

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