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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 5
First page : (97) Last page : (100)
Article doi: http://dx.doi.org/10.18782/2320-7051.5716

Effect of Irrigation Regimes and Weed Control Measures on Economics of Lowland Transplanted Rice during Boro Season

G. Satyanarayana Reddy*, P. Bandyopadhyay and D. Maiti
Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya,
Mohanpur, Nadia, West Bengal-741 252
*Corresponding Author E-mail: satishreddyagrico@gmail.com
Received: 15.07.2017  |  Revised: 27.07.2017   |  Accepted: 28.07.2017  


Rice (Oryza sativa L.) is one of the most important staple foods for the people of Southeast Asia including India. Rice is consequently the most important agricultural ecosystem and present and future food security of the country mostly depends on it. A field experiment was conducted at Balindi research complex of Bidhan Chandra Krishi Viswavidyalaya during boro season of 2012-13 and 2013-14, to study the influence of different irrigation regimes and weed control measures on performance of lowland transplanted rice during boro season. The field experiment was laid out in split plot design with different irrigation regimes (I1-Continuous submergence of 5±2; I2-Rotational water supply 4days on 3 days off; I3- Rotational water supply 3days on 2 days off; I4- Rotational water supply 2days on 1day off; I5-Continuous saturation) in main plots and weed management practices(W1-Unweeded check; W2-Weed-free check; W3-Pretilachlor 50 EC 500 g a.i. ha-1 on 1 DAT + hand weeding on 40 DAT; W4-Bispyribac sodium 10 SC 30 g a.i. ha-1 on 20 DAT + hand weeding on 40 DAT; W5-Hand weeding twice on 20 and 40 DAT) in sub plots with three replications. Among the different treatment combinations, the highest cost of cultivation (Rs. 54,937) was recorded with any level of irrigation in weed free check, whereas the lowest cost of cultivation (Rs. 39,497) was noted under any irrigation with unweeded control treatment combinations. The highest benefit-cost ratio (2.48) was obtained under the continuous submergence 5±2 cm along with PE pretilachlor at 1 DAT + HW at 40 DAT (I1W3) treatment combination followed by continuous submergence 5±2 cm (I1) along with PoE application of bispyribac-sodium at 20 DAT + HW at 40 DAT (I1W4).

Key words: Rice, Economics, Weed control, Irrigation regimes

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Reddy, G. S., Bandyopadhyay, P. and Maiti, D., Effect of Irrigation Regimes and Weed Control Measures on Economics of Lowland Transplanted Rice during Boro Season, Int. J. Pure App. Biosci.5(5): 97-100 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5716