Preemergence applications of KIH-485, s-metolachlor CGA-154281, and s-metolachlor atrazine CGA-154281 for woolly cupgrass control in corn, Lewis, IA, 2003

摘要

The purpose of this study was to evaluate variouspreemergence applied rates of KIH-485 and s-metolachlor & CGA-154281 for crop phytotoxicity andweed control in corn. The soil was a Marshall and Exira silty clay loam with a pH 6.0 and 5.0% organicmatter. The experimental design was a randomized complete block with three replications and plots were10 by 25 ft. The 2002 crop was soybean. Tillage included a spring tandem disking and field cultivation.Fertilization included 120 lb/A actual N applied as anhydrous ammonia. Crop residue on the soil surfacewas 10% at planting.