Soybean (glycine max) Seed Quality and Harvesting Efficiency as Affected by Low Weed Densities

摘要

With the shift to earlier maturing soybean cultivars, harvest interference data are needed at low weed densities that will not reduce yield, but may affect soybean quality or harveting effi- ciency. Field experiments were conducted in 1995 and 1996 to determine the density of five weeds necessary to warrant desiccation treatments. There were no consistent differences in losses of har- vestable soybena due to weed density. Common cocklebur increased foreign material and soybena moisture at a greater rate than did hemp sesbania, ivyleaf morningglory, or redroot pigweed, with sicklepod intermediate among these species.