1. Low temp impacts soybean yield.
Recent low temperatures across the Upper Midwest may have a negative impact on soybean yields. South Dakota State University Extension agronomy field specialist David Karki says that cold weather in general will delay maturity, particularly those soybeans that haven’t reached R6.
According to past research, Karki said that reports show significant yield loss due to freezing temperature on all soybean cultivars at or before R6 stage, however the effect varied among cultivars beyond R6 stage. “One can expect up to 5 to 15 percent yield loss if the growth stage is between R6 and full maturity. Protein content is not generally affected by freeze but oil content can be slightly reduced if the freeze occurs before R6,” he said.
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Photo: Susan Winsor