INFLUENCE OF HERBICIDES AND TILLAGE ON WEED-CONTROL, YIELD, AND QUALITY OF CABBAGE (BRASSICA-OLERACEA L VAR CAPITATA)

Transplanted cabbage was grown in conventional-tillage (100% cultivate d) and strip-tillage (25 % cultivated and 75 % residue) production sys tems with various herbicide treatments to evaluate weed control and ca bbage yield. DCPA at 9 kg ai/ha, napropamide at 1.1 kg ai/ha, oxyfluor fen at 0.3 kg ai/ha, and oxyfluorfen at 0.2 kg ai/ha plus napropamide at 1.1 kg ai/ha provided commercially acceptable (> 80%) control of ca rpetweed, swinecress, large crabgrass, redroot pigweed, and common lam bsquarters under both tillage systems. However, only oxyfluorfen plus napropamide provided control of eclipta. At a second location, all her bicides controlled common purslane and barnyardgrass and all but DCPA controlled hairy galinsoga. Overall, cabbage yields were the same betw een conventional and strip-tillage systems, and among herbicide treatm ents when average cabbage head weights across tillage method were pool ed.