Ecology, Environment and Conservation Paper

Vol 23, Sept. Suppl. Issue 2017; Page No.(146-150)

EFFICIENCY OF DIFFERENT POST EMERGENCE HERBICIDES ON WEEDS AND ECONOMICS OF THE TREATMENTS, YIELD AND PRODUCTIVITY IN DIFFERENT SOYBEAN VARIETIES

Sanjay Parmar, A. K. Jha and Jitendra Dubey

Abstract

A field experiment was carried out during kharif season of 2015, at the Research Farm, Department of Agronomy, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (M.P.) to study the efficacy of different post emergence herbicides on soybean varieties (Glycine max L.). The investigation was aimed to study the efficacy of herbicides as applied post-emergence for weed control in different soybean varieties and to determine economic feasibility of treatments. Weed control treatments Imazethapyr, Quizalofop-p-ethyl, Chlorimuron ethyl and Quizalofop-p-ethyl +Chlorimuron ethyl and weedy check were laid out in Split Plot Design with three replications. The experimental area has the natural weed flora comprising of grassy as well as broad leave weeds. 15 treatments comprised three (main plot treatments) variety JS 20-29, JS 20- 69 and JS 20-34 and 5 (sub plot treatments). The variety JS 20-29 with application of Quizalofop-pethyl+ Chlorimuron ethyl@ (50g+9g/ha) was given maximum yield (1412.70kg/ha) . The variety JS 20-29 with application of Quizalofop-p-ethyl +Chlorimuron ethyl @ (50g+9g/ha) most remerative and higher B: C ratio.

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