2010-06-022010-06-0219971999https://hdl.handle.net/10365/9486W-1134; Discussion in this publication will be limited to light spring-tooth harrow or rotary hoe use during preemergence to early postemergence crop stages for weed seedling management and control.NDSUAgricultural machinery.Weeds -- Control.Mechanical weed control with a harrow or rotary hoeW-1134