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Field Demonstration: Alternate Wetting and Drying (awd) Technology for Water Saving for Boro Rice Production in the Selected Locations of Bangladesh

Dr M A Sattar
CSO and Head
IWMD, BRRI

Dr M A Rashid
CSO and Head
IWMD, BRRI

D M Nazmul Hasan
PSO
IWMD, BRRI

Dr Hamidur Rahman Molla
PSO
IWMD, BRRI

Dr M A Kashem Khan
SSO
IWMD, BRRI

Dr Shahana Parveen
SSO
IWMD, BRRI

M Nurul Hasan Mahmud
SSO
IWMD, BRRI

Abstract/ Executive Summary:

A field demonstration of AWD were conducted at Gazipur, Rajshahi, Rangpur, Comilla, Feni, Hobigonj and Barisal to save irrigation water and reduce irrigation cost for rice cultivation by applying alternate wetting and drying in irrigation practice; to increase the awareness among the water management agencies such as BADC, BMDA and DAE about the use of AWD at farm level; and to improve the livelihood of farmers by reducing irrigation cost of rice– based crop production through environment friendly systems. AWD method was found to be suitable for water and fuel saving technology during dry season (Boro) water scarce period. It saved about 17 to 21% water by which farmers saved about Tk1328 to Tk1822 per hectare. AWD technology also increased yield benefit Tk6167/ha for BRRI dhan28 and Tk 6271/ha for BRRI dhan 29. Loss of additional weeding in AWD method were Tk 1375 and Tk 1455 per hectare for BRRI dhan28 and BRRI dhan29 respectively. Therefore the additional financial benefit of AWD method over farmer’s management practice was Tk 6614/ha for BRRI dhan28 .Whereas, the additional financial benefit of AWD method over farmer’s management practice was Tk 6144/ha for BRRI dhan29.AWD technology also increased yield benefit Tk4662/ha for Hybrid (Hera) and Tk. 5040/ha for BRRI dhan45, respectively. Similarly the additional financial benefit of AWD method over farmer’s management practice wasTk.4551/ha and Tk.4852/ha for hybrid (Hera) and BRRI dhan45, respectively.

Keywords: Water productivity, AWD, Rice

Location: Gazipur, Rajshahi, Rangpur, Comilla, Feni, Hobigonj and Barisal

Start Date:

End Date:

Program Area: Knowledge Management

Commodity: Water management

Objectives:

To save irrigation water and reduce irrigation cost for rice cultivation by applying alternate wetting and drying in irrigation practice.
To increase the awareness among the water management agencies such as BADC, BMDA and DAE about the use of AWD at farm level.
To improve the livelihood of farmers by reducing irrigation cost of rice– based crop production through environment friendly systems.

Methodology:

BRRI regional station based seven selected districts (Gazipur, Rajshahi, Rangpur, Comilla, Feni, Hobigonj and Barisal) were selected for conducting the project activities. In Gazipur and Rangpur three STWs were selected and each tubewell command area about twenty farmers were selected for demonstration purpose. In Rajshahi district one Deep tubewell (DTW) was selected and each tubewell command area about sixty farmers were selected for demonstration purpose. In Comilla district one DTW, one STW and one LLP were selected and in each tubewell command area at least twenty farmers were selected for demonstration purpose. In Feni, Hobigonj and Barisal district nine Low lift Pumps (LLP) were selected and in each LLP command area at least twenty farmers were selected for demonstration purpose. In each site the total farmers’ plot was about 60, which covering about 8 hectare.

Source of Information: BRRI Annual Review 2009

Article Link (Online Journal):

Funding Source:

1. Bangladesh Agricultural Research Council

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Number of irrigation and water used for different locations under different irrigation methods were monitored during Boro season. On an average short duration variety like BRRI dhan28 received 10 irrigation in AWD practice, whereas for farmers practice that was 14. As a result about 4 irrigation were saved compared to the farmers’ practice. Similarly long duration variety also saved on an average 4 irrigation during Boro season. There was some rainfall at the later part of BRRI dhan29. Hybrid (Heera) was cultivated at Rangpur district which saved 4 irrigations during Boro season. Another new variety BRRI dhan45 was cultivated at Feni district which saved 5 irrigation during Boro season.

Knowledge Management: Report/Proceedings