University research and extension are critical in equipping producers and agronomists with the information they need to continue advancing corn production in Iowa. Incorporating new scientific findings and recommendations into today's agricultural systems must be our priority to consistently produce a high quality crop that is also economically feasible.
2009 Corn Quality Issues
Charles Hurburgh and Roger Elmore
A cool, long growing season will often result in high yields with high grain moistures and low test weights. The lower test weight is the result of more starch and lower protein on a relative basis, a condition that also reduces field dry down rates and increases drying costs. Despite the overall cool season – highlighted by a warm period in early September – the USDA October yield estimate of 186 bushels per acre in Iowa is the highest on record. As often happens with high grain yields, quality issues are surfacing. How to handle and store high-moisture corn is a concern in most areas of the state. A three-part series of articles highlight current field conditions, test weight, weight shrink, field molds, and storage management. Read on »
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