Abstract

Author:
Iswar Chandra Barua, Jayanta Deka, Kalpana Gogoi, Harihar Bayan, Hemen Kalita, Ranjita Bezbaruah

Doi: 10.26480/jwbm.02.2022.111.115

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

With an aim to develop non-chemical weed management practices for green chili, an experiment was conducted at Jorhat, Assam, during 2017-19 and multi-location trials during 2020-21. Altogether seven non-chemical treatments were tested with the recommended herbicide and control. The results revealed that weeds successfully sprouted through mulch materials. Weed Control Efficiency and Weed Control Index were above 80% under Biodegradable Plastic Film (BPF) mulching and stale-seedbed treatments. The yield loss caused by the competitive weeds varied from 53.74% to 84.66%. Use of (i) rice straw mulching followed by one hand weeding at 75 DAP and (ii) BPF mulching emerged as superior non-chemical techniques of weed management resulting in better crop growth and yield. Rice-straw mulching followed by one Hand Weeding yielded as much as 6.45% more green chili than BPF mulching, 17.43% more than mechanical weeding thrice and 23.83% more than the application of herbicide.