| Indiaagronet.com
Cotton-based intercropping system is more prevalent under irrigated
and rainfed situations of India. An attempt was initiated to study
weed management in cotton based intercropping system at Agricultural
College and Research Institute, Killikulam during 1999 - 2000. Several
cropping systems – Cotton + Onion (local), Cotton + Vegetable
Lablab (CO12) and Cotton + Cowpea (CO2) were compared with sole
cotton (MCU5).
Weed management practices of metolachlor 0.75 kg ha{+-}{+1}, metolachlor
1.00 kg ha{+-}{+1} and fluchloralin 1.00 kg ha{+-}{+1} were applied
as pre-emergence and the herbicides were combined with one hand
weeding on 45 DAS and compared with hand weeding.
Cotton + vegetable cowpea (CO2), intercropping system effectively
checked the growth of weed population, weed drymatter production
and removal of nutrients (N, P and K) by weeds than cotton + onion,
cotton + lablab and sole cotton. Application of metolachlor 1.00
kg ha as pre-emergence herbicide combined with one hand weeding
on 45 DAS effectively controlled the weeds and favourably influenced
the growth attributes and yield attributes of cotton. The yield
also increased with the above weed control method. Raising cotton
as sole crop with metolachlor 1.00 kg ha{+-}{+1} + one hand weeding
on 45 DAS through produced an increased Kapas yield of 1585 kg ha{+-}{+1}
cotton + vegetable cowpea raised as 2:1 ratio under paired row system.
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