Vol. 11, Issue 6 (2022)

Author(s):
Kommireddy Poojitha, MT Sanjay, KN Kalyana Murthy and Mude Ashok Naik

Abstract:
A field study was conducted during kharif 2017 at Main Research Station, University of Agricultural Sciences, Hebbal, Bengaluru to know the effect of different new generation herbicides on the yield and economics of maize. The experiment was carried out by using RCBD design with nine treatments and three replications. The results revealed that spraying of topramezone 33.6% SC + dimethanamid-P 23.4% SC 570 g a.i. ha^-1 at 20 DAS recorded higher yield attributes and yield of maize like cob length (16.6 cm), cob girth (15.53 cm), number of rows cob^-1 (14.77), number of kernels per row (29.57), kernel weight cob^-1 (126.5 g), grain yield (6397 kg ha^-1), stover yield (7658 kg ha^-1) and lower weed index (2.42%) which was on par with passing cycle weeder followed by hand weeding at 20 and 35 DAS. The same herbicide treatment has recorded higher gross returns (Rs. 97214 ha^-1), net returns (Rs. 64634 ha^-1) and B:C ratio of 2.98.