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Nevada, Iowa | I could be wrong but I thought black layer occurred at a lower moisture, like 30-32%.
We got a killing frost here on Sept. 2, 1974. The yields as I recall were still decent for the time but drying was the issue. The corn never seemed to get below 32% that year. I am strictly guessing but I think we were in that 35-40% moisture range when the frost occurred. The weather following was rather cloudy and rainy so it didn't help the cause any. I think we made 30 degrees that night with no breeze. Test weight was low and the grain quality was poor. We had to leave some in the field that year, 24 rows a half mile in length, they drifted too deep with snow to get the picker through. As I recall, that grain was dry in the spring. We also put ear corn in cribs that year that did dry in the crib. It seems like it took a cold snap after January to get anything to change moisture. | |
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Corn test weight and frost?
