Effect of integrated weed management practice on weed growth, yield attributes and yield of irrigated maze (Zea mays L.)

A Field investigation were carried out at the farmer’s field Namasivayapuram Village, Chinnasalem Taluk, Villupuram District and Experimental Farm, Department of Agronomy, Faculty of Agriculture, Annamalai University, during summer and kharif season 2013 to study the effect of Integration of chemical and cultural methods for weed management in maize. The experiment was laid out by adopting randomized block design with three replications. The experiment comprised of twelve treatments. The results of the experiments revealed that weed management practices had positive influence on yield attributes, yields and nutrient uptake of maize, number of grains per Cob, Test weight, No of grains per row, Grain weight per cob, Grain and Stover yield were recorded higher in, pre emergence application of atrazine at 1 kg ha­­-1 + two hand weeding on 30 DAS. These treatments were found economical by recording higher net returns and B: C ratio compared to unweeded check.