High-Residue Study Yielding Results

A new study on yields in continuous corn, no-till fields by Pioneer Hi-Bred and the University of Missouri is already providing key results.

With the rise in continuous corn production and the growing popularity of no-till, growers are looking to combine these two practices while still maximizing yields. That’s why Pioneer Hi-Bred, a DuPont business, and the University of Missouri are joining forces in a four-year study to research the impact of high residue/corn stover on yields in corn-after-corn, no-till fields.

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The first wave of studies shows that hybrids with stronger emergence scores bring home greater yields to growers in high-residue fields, as does shredding stalks.

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The four-year study, which will end in 2011, will compare several methods of working with residue, including no-till fields where corn is planted between residue, stalks are shredded into small pieces, stalks are baled, nitrogen is applied to increase stalk degradation, and row cleaners are used during planting.

Yields for this year’s study ranged from 170 bushels per acre on the low end to 200 bushels per acre on the high end. The study takes place at the University of Missouri Bradford Research and Extension Center near Columbia, MO.

The study is part of the Pioneer Crop Management Research Awards (CMRA) program that provides funds for agronomic and precision farming studies by university and USDA cooperators throughout North America.

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