The hot temperatures and dry conditions this fall resulted in tinder dry crops and residue. As a result several accidental field fires occurred across Iowa. What makes these fires noteworthy is that crops were so dry that fires flashed quickly and burnt standing corn and soybean, and even soybean stubble. These fires have lead to questions about potential nutrient and crop dry matter losses. The April 10, 2000, ICM newsletter articleEstimating losses when cornstalk fields are accidentally burnt, pages 30-31, detailed issues related to organic matter loss and burnt cornstalks, but not to soybean stubble or standing corn and soybean.
Available at: http://works.bepress.com/john-sawyer/72/