Impact of integrated weed management practices on weed and morphological parameters of black gram (Phaseolus mungo)

Abstract

A field investigation was carried out during Kharif season in 2010 at Agronomy Department Farm, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, to evaluate the effect of four herbicides (imazethapyr , pendimethalin, fenoxyprop-p-ethyl and quizalofop-p-ethyl) applied at different rates with different time of application (pre-emergence, post emergence and combination of both) and cultural practices i.e. hand weeding and hoeing on morphological and weed contributing parameters in black gram (Phaseolus mungo). Among all the weed control methods, pre-emergence application of pendimethalin @ 1.5 kg/ha showed superiority over weedy check and rest all other methods, which were under study and significantly increased plant height (44.37), number of functional leaves plant-1 (12.37), leaf area plant-1 (886.7), total dry matter weight plant-1 (18.77), leaf area index (2.96), number of root nodules plant-1 (27 at 45 DAS) (other at 60 DAS), when compared with weedy check.