Influence of Different Weed Management Practices on Weed Indices and Growth Parameters of Summer Moong (Vigna radiata L.Wilczek) Under Irrigated Conditions of Punjab

Abstract

A field experiment was conducted during summer season of 2019-20 at the Campus for Research and Advanced Studies Dhablan of
General Shivdev Singh Diwan Gurbachan Singh Khalsa College, Patiala, Punjab. A set of 12 different treatment combinations were
laid out in randomized block design with 3 replications. Different weed management practices significantly influenced weed indices,
growth and economics of summer moong crop. Besides weed free treatment, weed indices like total weed population (3.13 m-2), weed
dry weight (4.07 gm-2) and weed index except weed control efficiency (%) were recorded significantly minimum with application
of Pendimethalin @ 1.0 kg ha-1 pre emergence (PE) followed by hand weeding (H.W.) at 30 date after sowing (DAS), followed by the
application of Imazethapyr @75 gm ha-1 (PE) followed by one hand weeding at 30 DAS at all growth stages. All growth parameters viz.,
plant height (36.28 cm), number of branches plant-1 (10.16) and dry weight (76.63 g) plant-1 significantly increased with application of
Pendimethalin @ 1.0 kg ha-1(PE) followed by H.W. at 30 DAS. The benefit cost ratio (2.68) was significantly maximum with application
of Pendimethalin @ 1.0 kg ha-1 (PE) followed by H.W. at 30 DAS.