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Sawyer, J
Humburg, D.S
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Authors
Osborne, S.L
Schumacher, T.E
Humburg, D.S
Sawyer, J
Topics
Type
Oral
Year
2008
2013
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Filter results2 paper(s) found.

1. Incorporating Cover Crops into No-till Production Systems

Although no-till soil management has many benef its, including protecting the soil from erosion, improving soil organic matter, and improving soil moisture storage, depending on environmental conditions there could be a number of potentia l problems. Implementation of no-till soil management in eastern South Da kota can lead to wet and cold soils at the time of planting. Cover crops have the potential to utilize exce ss soil moisture and improve soil conditions at planting. A field experiment was...

2. Comparison of the MRTN and Adapt-N Derived N Rates for Corn

Nitrogen application to corn is a large determinant for high yield, and rate has important implications for economic profitability and off-field movement of nitrate-N. Nitrogen rate recommendation systems have varied over time. A popular system was yield-goal based, with grain yield multiplied by a per-bushel factor and then rate adjusted for previous crop and other N inputs. Modifications of this system are still used today in some states. Seasonal (site-year) variability in economic optimum N rate...