Regional Corn Planting Date Recommendations for Iowa

Date
2010-01-01
Authors
Abendroth, Lori
Marlay, Stephanie
Myers, Anthony
Elmore, Roger
Foster, Robert
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Abstract

Corn is planted earlier every year and thisis one important component in maximizing grain yield. In 2009, 47% of the statewide corn crop was planted by approximately April 26. This was four days earlier than the previous 5-year average (USDA NASS, 2009). Earlier planting dates are attributed to several causes: larger acreage per producer, less spring tillage, advancements in hybrids, increased tile drainage, and improved seed treatments. The start of corn planting is generally related to the date when the soil temperature reaches 50°F (10°C) or greater.

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RFR A9085, Statistics, Agronomy
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