Soybean‐Foxtail Competition under Varying Soil Moisture Conditions¹

Abstract

Synopsis Soybean yield reductions due to annual weed infestations averaged 5% when soil moisture conditions during growing seasons were either adequate for or severely limiting to plant growth. Reductions were also small when moisture was limiting in early season and adequate later. When soil moisture was adequate until late July and then severely limiting until bean maturity, yield reductions from weed competition averaged 15%.