The USDA updated their weekly crop progress report and estimated 41% of the corn in Iowa has reached denting stage. The featured chart presents the yearly progress of this metric with linearly interpolated values in between the weekly reports. The white X values represent when each previous year reached the present year's value of 41%. A few recent years show up with a later progress, including 2013 and 2009. Once corn has dented, it still takes about another month or more before reaching black layer and full maturity. We really need to make it at least through at least September before any killing freeze happens and preferably well into October.

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Tags:   nass   corn