MADISON, WI, March 16, 2009 -- Planting soybean on the optimum date produces maximum yield and profit without increasing production costs. Unfortunately, the optimum planting date is hard to indentify, because it varies from year to year, depending on the weather and how much it rains and when it rains.
"Planting date has been a favorite topic of researchers ever since soybean was introduced into the United States, so there is a large database of experiments in the literature. A combined analysis of this database will provide a clearer picture of the average response than any single experiment," explains Dr. Dennis Egli, University of Kentucky, Lexington.