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Duary, B.
- Efficacy of Imazosulfuron on Weed Flora and Productivity of Wet Season Transplanted Rice in West Bengal
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Authors
B. Duary
1
Affiliations
1 Palli Siksha Bhavana (Institute of Agriculture), Visva-Bharati, Sriniketan – 731236, Birbhum West Bengal, IN
1 Palli Siksha Bhavana (Institute of Agriculture), Visva-Bharati, Sriniketan – 731236, Birbhum West Bengal, IN
Source
International Journal of Bioresource Science, Vol 1, No 1 (2014), Pagination: 1-6Abstract
Field experiments were conducted at Agricultural Farm of the Institute of Agriculture, Visva-Bharati, Sriniketan, West Bengal, India during wet season (kharif) of 2005 and 2006, respectively to study the efficacy of imazosulfuron on weed growth and productivity of transplanted rice. The soil of the experimental field was clay loam in texture with acidic soil reaction, low in organic carbon and available N and medium in available P2O5 and K2O respectively. Echinochloa colona, Cyperus iria, Hydrolea zeylanica and Monochoria vaginalis were the predominant weeds. Application of imazosulfuron at 50 g/ha at 5 days after transplanting (DAT) recorded significantly lower number and dry weight of total weeds at 45 DAT, higher plant height, leaf area index and dry matter production, higher number of panicles (345 m2), grains per panicle (72) and grain yield (3.9 t /ha) of rice which were at par with weed free and hand weeding twice. The maximum seed yield of 4.4 t/ha was obtained in weed free plots and it was statistically at par with that of hand weeding twice (4.2 t/ha) and imazosulfuron at 50 g/ha (3.8 t/ha). Among the three different dosages of imazosulfuron (i.e 15, 30 and 50 g/ha), application of imazosulfuron at 50 g /ha was found most effective registering higher weed control efficiency and lower weed index.Keywords
Imazosulfuron, Efficacy, Butachlor, Pretilachlor, Rice, Weed Control Efficiency
- Residual Effect of Almix Herbicide Applied to Direct Seeded Upland Rice on Succeeding Toria Under Tripura Condition
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Authors
Affiliations
1 Department of Asepan, Palli Siksha Bhavana, Visva-Bharati, Sriniketan (W.B.), IN
2 ICAR (RC), NEH Region, Tripura Centre, Lembucherra (Tripura), IN
1 Department of Asepan, Palli Siksha Bhavana, Visva-Bharati, Sriniketan (W.B.), IN
2 ICAR (RC), NEH Region, Tripura Centre, Lembucherra (Tripura), IN
Source
International Journal of Agricultural Sciences, Vol 13, No 2 (2017), Pagination: 204-207Abstract
The field experiment was conducted to assess the residual effect of herbicide applied to direct seeded rice on toria grown at KVK, South Tripura. The experiment consisted of twelve treatments laid out inRandomized Complete BlockDesign with three replications. Total six numbers of herbicides viz., pendimethalin, 2,4-D, fenoxaprop, bispyribac sodium, metsulfuron methyl+chlorimuron ethyl (Almix), pyrazosulfuron ethyl was applied alone or integrated with other herbicides or different weed management practices. Among the various herbicide tested in direct seeded upland rice metsulfuron methyl+chlorimuron ethyl (Almix) had exerted residual effect on toria and the effect was evident from poor growth, yield and yield attributing characters of toria. Other herbicide had no residual effect on succeeding toria after rice.Keywords
Residual Effect, Fenoxaprop, Weed Management, Almix, Pendimethalin.References
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