Year: 2022 | Month: December | Volume 9 | Issue 2
Effect of Integrated Weed Management Practices on Growth and Fibre Yield of Olitorius Jute (Corchorus olitorius L.) Under New Alluvial Zone
Bikas Mandal
Maksud Hasan Shah
Saheb Bhadra
Deb Prasad Ray
DOI:10.30954/2347-9655.02.2022.4
Abstract:
Jute is one of the most important cash crops in the alluvial zone of West Bengal and neighbouring states. Jute fibre is eco-friendly, biodegradable and recyclable in nature and hence it creates pollution free environment. In modern era of growing environmentally benign crops, the role of jute as ‘Green Crop’ may be highlighted and the significance of this commercial crop will not be only to produce fibre for industries as raw material but also the equivalent impact on balancing and conditioning the soil-air- environment. Field experiment was conducted during pre kharif season of 2019 and 2020 at Agricultural Farm, Kalyani D block, B.C.K.V, Kalyani, with jute variety “JR0 2407 (Samapti)” to study the Effect of integrated weed management practices on growth and fibre yield of Olitorius jute (Corchorus olitorius L.) under New Alluvial Zone. The field experiment was carried out in randomized complete block design with four replications and six treatments i.e. T1: Pretilachlor 500g/ha within 48 hours of sowing with irrigation + one hand weeding at 15 DAS, T2: Nail weeder 1st at 10 DAS and 2nd at 25 DAS + one hand weeding (within row) at 40 DAS, T3: Jute + Green gram (cv Pant Mung 5) 1:1 replacement series, T4: Pretilachlor 500g/ha within 48 hours of sowing with irrigation + quizalofop ethyl 60 g/ha at 25 DAS, T5: Unweeded check, and T6 : Two hand weeding (HW) at 15 DAS and 30 DAS. Result showed that weed management had positive and favourable influence in improving plant height, yield attributes like fiber yield, stick yield and pod yield of green gram under study. The treatment T4: Pretilachlor 500g/ha at within 48 hours of sowing with irrigation + quizalofop ethyl 60 g/ha at 25 DAS has significantly reduced the weed infestation and registered lower weed density, weed dry weight, weed index, higher weed control efficiency and yield attributes and yield of jute over T1- Pretilachlor 500g/ha within 48 hours of sowing with irrigation + one hand weeding at 15 DAS, T37- Jute + Green gram (Pant Mung 5) 1:1 replacement series, and at par with T2 Nail weeder 1st at 10 DAS and 2nd at 25 DAS + one hand weeding (within row) at 40 DAS. Although for some parameters T2 treatment registered the higher value but it was at par T4 & T3 treatments. Pretilachlor 500g/ha at 45-48 hours of sowing with irrigation + quizalofop ethyl 60 g/ha at 25 DAS appeared as effective and economic for managing broad spectrum weeds of pre kharif jute in new alluvial zone of West Bengal.
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