What a weekend! It was only 10 days ago that it was in the 70°s, and yesterday (May 1), I finally stopped planting when it started to snow. Yes, some of us don't have a cab on our tractor! It has definitely been cooler than normal and the average 4-inch soil temperature is now getting close to 50° F. Air temperatures have been close to 30° F in central Iowa over the last couple of days, but it will finally change later this week.
Iowa State University
Pedersen, Palle, "Frost-damaged corn" (2005). Integrated Crop Management News. 1400.
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