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Iowa's Corn Suitability Rating 2 equation updated

The equation for calculating Iowa’s Corn Suitability Ratings (CSR) was recently updated and designated Corn Suitability Rating 2 (CSR2). The updated equation provides every user an opportunity to calculate the rating for each soil map unit identified in Iowa.

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Genetic modification led to corn roots to be more N efficient

Genetic modification of maize over the last century has led to desirable shoot characteristics and increased yield - and that likely contributed to the evolution of root systems that are more efficient in acquiring nutrients, such as nitrogen, from the soil, according to a new study.

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Skip-row planting in rainfed corn

Skip-row is a practice that can increase the success on rainfed corn if one has at least 4,000 pounds of wheat residue (the residue from a 40-bushel wheat crop — spread evenly). A stripper header improves the value of this residue because it lasts longer.

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Growers up the ante for 2015 herbicide resistance management

Herbicide resistance management continues to be a priority for corn and soybean growers, and they’re working together more effectively to slow the spread of resistant weeds, according to a survey sponsored by DuPont Crop Protection at the 2015 Commodity Classic in Phoenix, Ariz.

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