Summer Heat and Corn Yields
By T. Marc Schober:Questions about diminishing crop conditions have been raised in July, as the Corn Belt has been plagued with unseasonably high temperatures for most of the past two weeks. This prolonged period of hot, dry weather caused the USDA to lower crop condition estimates for both corn and soybeans in each of the past two weeks. According to a recent publication by UBS Investment Research, “The 2011 corn crop is off to a start that we believe would be consistent with below normal growing conditions.” Since 1992, below trendline crop conditions at this point in the growing season have resulted in a national average of less than 154.7 bushels/acre, said UBS. There are a number of factors to determine how the levels of stress and potential yield damage caused by hot weather. To estimate potential losses, one needs to analyze the following factors collectively: soil moisture, plant maturity, duration of prolongedComplete Story »
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