Society of Agricultural Scientists

S.V. Agricultural College, Tirupati

Acharya N.G. Ranga Agricultural University

Andhra Pradesh, India

Sequential Application of Herbicides and Their Impact On Productivity of Rabi Groundnut (Arachis Hypogaea L.)

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P. BHAVANI*, V. CHANDRIKA, P. MAHESWARA REDDY AND M.V.S. NAIDU

Department of Agronomy, S.V. Agricultural College, ANGRAU, Tirupati

ABSTRACT

Field experiment entitled “Sequential application of herbicides and their impact on productivity of rabi groundnut (Arachis hypogaea L.)” was conducted during rabi, 2020-2021 on sandy loam soils of wetland farm of S.V. Agricultural college, Tirupati, Andhra Pradesh. Among all the weed management practices, higher dry matter production, weed control efficiency, yield attributes and yield with lower weed index of groundnut was recorded with hand weeding twice at 20 and 40 DAS (T9), which was comparable with pre-emergence (PE) application of diclosulam 20 g ha-1  fb quizalofop-p-ethyl 50 g ha-1 + bentazone 960 g ha-1 at 20 DAS (T8) and PE application of alachlor 1250 g ha-1 fb quizalofop-p-ethyl 50 g ha-1 + bentazone 960 g ha-1 at 20 DAS (T5). The latter two chemical weed management practices can be effectively utilized to control weeds in place of unprofitable and burdensome hand weeding in groundnut.

KEYWORDS: rabi groundnut, weed index and yield.

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