INFLUENCE OF TILLAGE ON SOYBEAN (GLYCINE-MAX) HERBICIDE CARRYOVER TO GRASS AND LEGUME FORAGE CROPS IN MISSOURI

Studies were established in 1988, 1989, and 1990 at two locations in M issouri to study the influence of fall tillage and herbicides on carry over of several residual soybean herbicides to grass and legume forage crops. Chlorimuron, clomazone, imazaquin, imazethpyr, and metribuzin plus chlorimuron were applied at their registered and 2X-registered ra tes in soybeans. Forage crops were planted the following fall and spri ng after herbicide application and evaluated for carryover effects. Fa ll tillage did not influence the carryover potential of these herbicid es. However, herbicides injured several of the rotational crops. This injury was crop species and herbicide specific.