Earlier soy planting improves yields, oil content, researchers find

Researchers at Purdue University have found that earlier soy planting increases yields and oil content, and reported the results of a two-year study in  the January-February 2009 issue of Agronomy Journal. The research, sponsored by the Indiana Soybean Alliance and the Indiana Crop Improvement Association, found that yield was consistently highest when planting in April and early May, while also finding that oil concentration was higher with earlier planting while protein content increased with later planting.

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