Water usage and productivity of Boro rice at the field level and their impacts on the sustainable groundwater irrigation in the North-West Bangladesh

Mainuddin, Mohammed and Maniruzzaman, Md. and Alam, Md Mahubul and Mojid, Mohammed A. and Schmidt, Erik J. and Islam, Md. Towfiqul and Scobie, Michael (2020) Water usage and productivity of Boro rice at the field level and their impacts on the sustainable groundwater irrigation in the North-West Bangladesh. Agricultural Water Management, 240:106294. pp. 1-12. ISSN 0378-3774


Abstract

Groundwater-irrigated Boro rice is produced on 83 % of the net cultivable area (NCA) in North-West (NW)region of Bangladesh. Falling groundwater levels in many parts of the region raised concerns about the sustainability of groundwater irrigation. It is generally accepted that, in the absence of a comprehensive scientific study, uncontrolled groundwater use for Boro rice cultivation leads to water wastage and low water productivity.Therefore, it is crucial to know the actual field-level water usage and, irrigation water productivity, which willhelp identifying options to sustain groundwater irrigation. This study provides a comprehensive account of theseaspects of Boro rice cultivation based on field observations at 420 farmers’ plots in 2015–16 and 2016–17seasons across seven sites in the NW region. Necessary data, including land type, soil type, rice varieties, seedingand transplanting times, grain and biomass yields pump discharge, and irrigation amount were recorded.Average water productivity was 0.67 kg m−3and 0.64 kg m−3based on total available water (rainfall plusirrigation) in the fields, 0.80 kg m−3and 0.95 kg m−3based on supplied irrigation, and 1.60 kg m−3and 1.78 kgm−3based on estimated actual crop evapotranspiration (ETc) during 2015–16 and 2016–17, respectively.


Statistics for USQ ePrint 38870
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Agricultural Engineering (1 Aug 2018 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Agricultural Engineering (1 Aug 2018 -)
Date Deposited: 22 Jul 2020 03:34
Last Modified: 27 Jul 2020 01:38
Uncontrolled Keywords: irrigated rice; water usage; people's perception; water productivity
Fields of Research (2008): 07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070101 Agricultural Land Management
Fields of Research (2020): 30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3002 Agriculture, land and farm management > 300202 Agricultural land management
Socio-Economic Objectives (2008): D Environment > 96 Environment > 9609 Land and Water Management > 960904 Farmland, Arable Cropland and Permanent Cropland Land Management
Identification Number or DOI: https://doi.org/10.1016/j.agwat.2020.106294
URI: http://eprints.usq.edu.au/id/eprint/38870

Actions (login required)

View Item Archive Repository Staff Only