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SURYA PRAKASH MISHRA, Y. REDDI RAMU*, D. SUBRAMANYAM, V. UMAMAHESH, R. REDDI MANOJA AND G. PRABHAKAR REDDY
Department of Agronomy, S.V. Agricultural College, Tirupati-517502, A.P.
A field experiment was conducted during kharif, 2014 at dryland farm of S. V. Agricultural College, Tirupati to study the effects of integrated weed management on growth and yield of pearlmillet. Unweeded check resulted in significantly higher weed count, biomass and grain yield than rest of the treatments. An extent of 46.5 % yield reduction was observed with unweeded check over hand weeding twice at 20 and 40 DAS, which recorded significantly lower weed count, biomass and higher yield over rest of the weed management practices. However, it was comparable with pre-emergence application of atrazine @ 750 g a.i. ha-1 fb hand weeding at 30 DAS. Pre-emergence application of oxyflourfen @ 100 g a.i. ha-1 resulted in significantly lower yield due to poor weed control and its phytotoxic effects on the crop. In this investigation, integration of Pre – emergence application of atrazine or oxyflourfen fb post-emergence application of ethoxysulfuron @ 37.5 g a.i. ha-1 or chlorimuron-ethyl+ metsulfuron-methyl @ 8 g a.i. ha-1 at 2-4 leaf stages of weeds did not have any significant impact on weed control and grain yield in pearlmillet.
Hand weeding, Grain yield, Phytotoxicity, Pre-emergence weed control