International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (629) Last page : (634)
Article doi: http://dx.doi.org/10.18782/2320-7051.5434

Prospects of Alternate Wetting and Drying (AWD) Methodology of Irrigation through System Intensification on Productivity of Summer Transplanted Rice (Oryza sativa L.)

Dibyendu Mondal*, Anannya Ghosh, Diana Shamurailatpam, Soumen Bera,
Pintoo Bandopadhyay and Ratikanta Ghosh
Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur-741252, West Bengal, India
*Corresponding Author E-mail: dibyendumondal.agri@yahoo.com
Received: 13.08.2017  |  Revised: 21.08.2017   |  Accepted: 22.08.2017  

 ABSTRACT

The System of Rice Intensification (SRI) shows promise for substantially raising rice productivity besides offering savings of major inputs viz. water, seed, labour and increasing soil health status. Field experiment was conducted at the Viswavidyalaya farm, Mohanpur during summer 2014-15 and 2015-16 on water management in transplanted puddle rice cv. IET 4786 to find out the advantages of SRI over TTR (Traditional transplanted rice) in respect to water saving and rice productivity. Four treatments viz. T1- FCP (Farmers' common practices: 3-5 cm of standing water throughout the crop cycle), T2- Only 2-3 cm WS (2-3 cm of standing water throughout the crop cycle), T3- HC (Irrigation at soil hair crake stage) and T4- AWD (Irrigation at soil hair crake stage during vegetative phase + 2-3 cm of standing water at active tillering, panicle initiation and flowering stage only) were used in randomised block design replicated six times. The results revealed that average yield increase in 2015-16 than 2014-15 was 2.56 %. Irrigation through AWD methodology resulted 32.78 % water savings in comparison to FCP. The other two treatments, irrigation at hair crack stages and only 2-3 cm WS showed 53.90 and 21.23 % water saving over farmers’ common practice respectively. For producing one kg of rice the water requirement in AWD, HC and only 2-3 cm WS was 1217, 1037 and 1580 litre respectively, which was lower than of FCP (1891 litre). Therefore it could be concluded that in SRI irrigating through AWD methodology showed 33 % water saving and an average of 7.62 % productivity increase in comparison to FCP in traditional transplanted rice cultivation.

Key words:  System of rice intensification; alternate wetting and drying (AWD); water saving %; rice productivity.

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

Cite this article: Mondal, D., Ghosh, A., Shamurailatpam, D., Bera, S., Bandopadhyay, P. and Ghosh, R., Prospects of Alternate Wetting and Drying (AWD) Methodology of Irrigation through System Intensification on Productivity of Summer Transplanted Rice (Oryza sativa L.), Int. J. Pure App. Biosci.5(4): 629-634 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5434