CHEMICAL WEED-CONTROL IN RAIN-FED MAIZE (ZEA-MAYS)

An experiment was conducted during rainy (kharif) season of 1991 and 1 992 on chemical weed control in rainfed maize (Zea mays L.). The poole d data on grain yield indicated that metolachlor(1.25 kg/ha as pre-eme rgence spray) and atrazine(1.25 kg/ha as pre-emergence spray) gave the maximum grain yield and were at par with weeded control. Butachlor (1 .5 kg/ha as pre-emergence spray) was found to be the next alternative to metolachlor and atrazine. Atrazine, metolachlor and alachlor were m ore than 90% efficient in reducing dry weight of weeds. Both glyphosat e and antilophos were observed to be toxic to maize plant.