Your search found 4 records
1 Mustafa, S. M. T.; Vanuytrecht, E.; Huysmans, M. 2017. Combined deficit irrigation and soil fertility management on different soil textures to improve wheat yield in drought-prone Bangladesh. Agricultural Water Management, 191:124-137. [doi: https://doi.org/10.1016/j.agwat.2017.06.011]
Irrigation management ; Water deficit ; Soil fertility ; Soil management ; Soil texture ; Water productivity ; Models ; Crop yield ; Wheat ; Irrigation scheduling ; Soil water content ; Soil types ; Meteorological observations ; Drought ; Precipitation ; Strategies / Bangladesh / Dhaka / Mymensigh / Rajshahi / Rangpur
(Location: IWMI HQ Call no: e-copy only Record No: H048223)
(2.35 MB)
Proper utilization of water resources is very important in agro-based and drought-prone Bangladesh. Sustainable use of water resources in agriculture requires irrigation schedules based on local environmental conditions, soil type and water availability. In this study, the water productivity model AquaCrop was used to simulate different water and fertilizer management strategies in a drought prone area of Bangladesh to obtain management recommendations. First, the Standardised Precipitation Index (SPI) and Reconnaissance Drought Index (RDI) were determined to quantify the aggregated deficit between precipitation and the evaporative demand of the atmosphere, which confirm that meteorological drought is occurring frequently in the study area. Also, the AquaCrop model was successfully calibrated and validated for wheat in the area, which was confirmed by the several statistical indicators, and could be used to design water and fertilizer management strategies. Simulations identified stem elongation (jointing) to booting and flowering stage as the most water sensitive stages for wheat. Deficit irrigation during the most water sensitive stages could increase the interannual yield stability and the grain yield compared to rainfed conditions for different soil fertility levels on loamy and sandy soils by 21–136% and 11–71%, respectively, while it could increase water productivity compared to full irrigation strategies. Deficit irrigation resulted in grain yields almost equal to yields under full irrigation and could at the same time save 121–197 mm of water per growing season. Specifically, we suggest two irrigation applications: one at the stem elongation (jointing) to booting stage and another at the flowering stage for loamy soils; and one at the end of seedling development to the beginning of crown root initiation stage and another at the flowering stage for sandy soils. Given the water scarcity in the region, instead of optimal fertility levels, moderate fertility levels are recommended that result in 60% of the potential biomass production for loamy soils and in 50% for sandy soils in combination with the suggested deficit irrigation strategies.
2 Banerjee, P. S.; de Silva, Sanjiv. 2020. Pro-poor groundwater development: the case of the Barind experiment in Bangladesh. Washington, DC, USA: World Bank. 8p. (Water Knowledge Note)
Groundwater development ; Irrigation programs ; Deep tube wells ; Shallow tube wells ; Groundwater irrigation ; Costs ; Metering ; Agricultural production ; Rice ; Farmers ; Poverty ; Sustainability ; Case studies / Bangladesh / Barind / Rajshahi / Rangpur
(Location: IWMI HQ Call no: e-copy only Record No: H049597)
https://openknowledge.worldbank.org/bitstream/handle/10986/33246/Pro-Poor-Groundwater-Development-The-Case-of-the-Barind-Experiment-in-Bangladesh.pdf?sequence=1&isAllowed=y
https://vlibrary.iwmi.org/pdf/H049597.pdf
https://vlibrary.iwmi.org/pdf/H049597.pdf
(1.65 MB) (1.65 MB)
The Barind region, a water-stressed area in northwest Bangladesh, had an underdeveloped agricultural economy and high levels of poverty until two projects revitalized the area with enhanced groundwater irrigation. The Barind Integrated Area Development Project in 1985 and Barind Multipurpose Development Authority (BMDA) in 1992 used new water extraction technology and innovative management practices such as deep tubewells (DTWs) fitted with smart card–operated electric pumps to develop drought-resilient irrigation. Both projects have helped the Barind region reduce poverty and achieve self-sufficiency in rice. However, there are concerns about declining groundwater levels in the Barind and nearby regions, resulting in a temporary halt in DTW expansion. Preliminary evidence presented in this case study suggests farmers served by shallow tubewells (STWs) may be losing access to groundwater in some parts of the Barind region, which can have significant development implications because these tubewells remain the predominant source of irrigation. This evidence provides grounds to question whether an irrigation model reliant on DTWs is sustainable and equitable in the long term. Further research is needed to better establish groundwater conditions and understand the risk to STW users to inform future policy on DTW-driven agricultural development.
3 Mojid, M. A.; Mainuddin, M.; Murad, K. F. I.; Kirby, J. M. 2021. Water usage trends under intensive groundwater-irrigated agricultural development in a changing climate – evidence from Bangladesh. Agricultural Water Management, 251:106873. (Online first) [doi: https://doi.org/10.1016/j.agwat.2021.106873]
Water use ; Trends ; Agricultural development ; Climate change ; Groundwater irrigation ; Sustainability ; Irrigation requirements ; Cropping patterns ; Irrigation water ; Rain ; Soil water balance ; Agricultural planning ; Water demand ; Food security ; Evapotranspiration ; Models / Bangladesh / Rajshahi / Rangpur / Bogura / Chapainawabganj / Joypurhat / Naogaon / Natore / Pabna / Sirajganj / Thakurgaon / Panchagarh / Nilphamari / Lalmonirhat / Kurigram / Gaibandha / Dinajpur
(Location: IWMI HQ Call no: e-copy only Record No: H050326)
(17.00 MB)
Comprehensive information on the past trend of local-level water usage of the cultivated crops is important for agricultural planning and forecasting water needs. This vital information is however deficient for the North-West (NW) region of Bangladesh. We estimated actual crop evapotranspiration (ET), total and crop-usable effective rainfalls (TER and ER, respectively) and irrigation requirement (IR) of 8 major crops and 8 cropping patterns over historical period (1985–2015) by using SWBcropwat model and trends of these water parameters by using MAKESENS tool for the 16 districts of the region. ET of the Rabi crops and cropping patterns revealed significant (p = 0.05) decreasing trends in all districts, the average decrease being 13–31% in different districts. ER decreased significantly for most dry season crops in 4 districts. TER was often greater than ER for Kharif crops, which could not fully utilize TER always because of its non-uniform temporal distributions. IR showed significantly decreasing trend for the Rabi crops in 11 districts and increasing trend for the Kharif crops in 5 districts. Although ET and IR decreased in most cases, their total volumetric quantities showed significantly increasing trends due to expanded irrigated area in 16 districts over time; IR increased by 27–186% in different districts. Because of water scarcity and prospective economic benefit, farmers have been spontaneously adjusting crop selection – shifting from higher-water demanding crops to lower water-demanding crop-cultivation – during the last two decades. Our information would guide planning the agriculture of the NW region by selecting appropriate crops based on sustainable limit of groundwater resources. The employed methodology can evaluate crop suitability periodically for adjustment in any area.
4 Islam, Md. T.; Hossain, Md. E. 2022. Economic feasibility of solar irrigation pumps: a study of northern Bangladesh. International Journal of Renewable Energy Development, 11(1):1-13. [doi: https://doi.org/10.14710/ijred.2022.38469]
Solar energy ; Pumps ; Irrigation systems ; Economic analysis ; Feasibility studies ; Renewable energy ; Solar panels ; Photovoltaic systems ; Environmental factors ; Indicators ; Government ; Models / Bangladesh / Dinajpur / Rangpur
(Location: IWMI HQ Call no: e-copy only Record No: H050993)
https://ejournal.undip.ac.id/index.php/ijred/article/download/38469/pdf
https://vlibrary.iwmi.org/pdf/H050993.pdf
https://vlibrary.iwmi.org/pdf/H050993.pdf
(0.89 MB) (908 KB)
Bangladesh is the most densely populated country in the world. With a total population of around 165 million, the country has constantly been facing food security challenges and other problems. Therefore, increasing food production is one of the feasible solutions to this challenge, and proper agricultural land use for food production bears critical importance. Adopting sustainable irrigation systems and viable technologies would be vital for ensuring efficient use of agricultural land in Bangladesh to safeguard the country's food security. Solar irrigation pumps (SIPs) can be a reliable option in this regard. However, Bangladesh has experienced a prolonged growth rate of SIP installation in the last decade. The countryhas set a target to install 10000 SIPs by the year 2027, albeit it is a tiny share of the 1.57 million conventional irrigation pumps operating in the country. This study aims to investigate the economic feasibility of the SIPs operating in the northern region of Bangladesh in terms of estimating financial feasibility and environmental benefits. The study is mainly based on primary data collected from the users of SIPs from two Upazilas of Dinajpur and Rangpur districts. A total of 14 SIPs, categorized into large, medium, and small pumps, are selected randomly from the available SIPs in the study areas. The financial analysis reveals that small SIPs are the most profitable option (20% IRR) for investment. Large SIPs are moderately profitable (10% IRR), and their profitability can be improved (10.50% IRR) by introducing additional uses of solar energy. However, medium SIPs are the worst (5% IRR) option for investment. In the study areas, large and medium SIPs are designed for the 'fees for service model', and small SIPs are designed for the 'fees for ownership model'. It is found that the 'fees for ownership model' is more profitable than the 'fees for service model'. Moreover, the net environmental benefit for all SIPs is found almost equal to the given subsidy for installing them. Also, the net environmental benefit per kilowatt peak (kWp) is highest for the small SIPs. This paper recommends that additional use (e.g., husking, grinding, supply excess electricity to grid, and so on) of solar energy can improve the profitability of investmenton SIPs. Further, the government should continue giving grants for installing SIPs and promote 'fees for ownership model' (small SIPs) for personal use. It would speed up the dissemination rate of SIPs and help increase the country's agricultural production and improve the environmental conditions.
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