Effect of Weed Management Practices on Growth and Yield of Zero-Till Chickpea (Cicer arietinum L.)
A. Varshini *
Department of Agronomy, Agricultural College, Polasa, Jagtial, India.
G. Satyanarayana Reddy
Department of Agronomy, Agricultural College, Polasa, Jagtial, India.
E. Rajanikanth
Department of Agronomy, NARP, RARS, Polasa, Jagtial, India.
A. Krishna Chaitanya
Department of Soil Science and Agricultural Chemistry, RS & RRS, Rudrur, India.
*Author to whom correspondence should be addressed.
Abstract
A field experiment to compare weed management practices on growth and yield of zero till chickpea (Cicer arietinum L.) during rabi, 2022 at RARS, Jagtial, Telangana. Treatments include Pendimethalin 38.7 % CS @ 700 g a.i. ha-1 , Topramezone 33.6 % SC @ 20.6 g a.i. ha-1 , Quizalofop ethyl 7.5 % + Imazethapyr 15 % EC @ 100 g a.i. ha-1, T4- Propaquizafop 2.5 % + Imazethapyr 3.75 % (w/w) ME @ 125 g a.i. ha-1 , two hand weedings at 15 and 30 DAS , weed free (Season long) and Un-weeded (Check). Weed free treatment and hand weeded plots showed highest growth and yield attributing characters because of season-long weed-free conditions and better microclimate during critical period of crop respectively. Among different herbicides, Topramezone treated plot recorded higher growth parameters viz.; plant height (38.7 cm), dry matter accumulation (320.8 g m-2) and yield attributing characters viz.; total number of pods plant-1 (30.97), with seed yield (1397 kg ha-1), haulm yield (2518 kg ha-1) and harvest index (35.7 %). Post emergence herbicide topramezone can be effectively adopted for getting higher yield of chickpea in rice fallow zero tillage conditions.
Keywords: Zero till, chickpea, weed management, herbicides, topramezone, toxicity, growth, yield parameters