Soybean yields blew the top off records across Iowa this year as favorable weather and improved genetics combined to produce un­­precedented results.

"By and large, we’ve had some of the best yields we’ve ever had across the state," said Clarke McGrath, On Farm Research and Extension Coordinator for the Iowa Soybean Research Center. "In southwest and south-central Iowa, where traditionally we struggle to get 50 bushels (per acre), we saw guys averaging 60 to 70 bushels in some fields. It just blew us...