Adoption of alternate wetting and drying (AWD) irrigation as a water-saving technology in Bangladesh: Economic and environmental considerations

Alauddin, Mohammad; Sarker, Md. Abdur Rashid; Islam, Zeenatul; Tisdell, Clement A.

doi:10.1016/j.landusepol.2019.104430

Cited by 50 publications

(38 citation statements)

References 53 publications

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“…Better irrigation management can improve cereal crop productivity under climate warming. Water-saving interventions such as direct-planted rice, a modified system of rice intensification and alternate www.nature.com/scientificreports/ wetting and drying (AWD) of rice were implemented in a cluster approach and resulted in enhanced water use efficiency [225][226][227][228][229] . Optimum fertilization rates are also very effective to decrease the impact of global warming.…”

Section: Adaptation Strategies In Response To Climate Changementioning

confidence: 99%

The fingerprints of climate warming on cereal crops phenology and adaptation options

Fatima

Ahmed

Hussain

et al. 2020

Sci Rep

187

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Growth and development of cereal crops are linked to weather, day length and growing degree-days (GDDs) which make them responsive to the specific environments in specific seasons. Global temperature is rising due to human activities such as burning of fossil fuels and clearance of woodlands for building construction. The rise in temperature disrupts crop growth and development. Disturbance mainly causes a shift in phenological development of crops and affects their economic yield. Scientists and farmers adapt to these phenological shifts, in part, by changing sowing time and cultivar shifts which may increase or decrease crop growth duration. Nonetheless, climate warming is a global phenomenon and cannot be avoided. In this scenario, food security can be ensured by improving cereal production through agronomic management, breeding of climate-adapted genotypes and increasing genetic biodiversity. In this review, climate warming, its impact and consequences are discussed with reference to their influences on phenological shifts. Furthermore, how different cereal crops adapt to climate warming by regulating their phenological development is elaborated. Based on the above mentioned discussion, different management strategies to cope with climate warming are suggested.

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Section: Adaptation Strategies In Response To Climate Changementioning

confidence: 99%

The fingerprints of climate warming on cereal crops phenology and adaptation options

Fatima

Ahmed

Hussain

et al. 2020

Sci Rep

187

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“…Moreover, Bangladeshi farmers apply on an average 38% excess water than the actual requirement (Hossain et al 2021). Water-saving modern technologies are rarely adopted by the community as a whole despite being economical and yield maximizing (Alauddin et al, 2020;Hossain et al, 2016).…”

Section: Rice Groundwater Mining and Forgone Environmental Costsmentioning

confidence: 99%

Irrigation Decisions and Use of Groundwater in Bangladesh: Perspectives on Some Evolving Crisis

2021

aijmsr

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Groundwater is one of the vital rechargeable natural capitals, which serves as the main water source around the globe. In Bangladesh, about 79% of the cultivated area relies on groundwater irrigation. The perspective piece is intended to scrutinize the irrigation decisions and groundwater use in Bangladesh from published sources. The paper points that the reason behind the excessive groundwater mining is imbedded in the heavy dependence of Bangladesh on irrigated dry season rice to feed its huge populaces. Bangladesh has obtained rice self-sufficiency by foregoing environmental costs. The farming communities as a whole rarely adopted water-saving modern technologies and keep paddy fields abundantly irrigated as the marginal cost of irrigation is near zero. The irrigation water price is commonly pre-negotiated on the basis of per unit area for the whole crop season without considering the volume of water. The perspective suggests that the ignorance about the importance of groundwater and the consequent over-extraction cannot be stopped without thorough policy reforms. Bangladesh should move toward institutionalizing irrigation, design a participatory framework involving all the stakeholders in a water management network and piloting efficient water models across the country.

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“…The authors argued that applying AWD in areas with inappropriate soil types, such as sandy soils and heavy clay soils with shallow water tables, negatively affected crop yields. Other significant constraints to farmers' AWD adoption relate to the lack of information and extension services (Alauddin et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…For example, improved water governance with volumetric pricing would create an incentive for adopting AWD (Li and Barker 2004). Deploying local extension services and training to inform farmers about the implementation and benefits of AWD would also enhance technology uptake (Alauddin et al 2020), and strengthening the capacities of extension service field staff would improve the transfer of AWD knowledge to farmers and increase their confidence in applying the technology (Kürschner et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Using the Internet of Things to promote alternate wetting and drying irrigation for rice in Vietnam’s Mekong Delta

Pham

Tung

Fock

et al. 2021

Agron. Sustain. Dev.

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The livelihoods of millions of rice farmers in Vietnam's Mekong Delta have become increasingly vulnerable due to reduced rainfall and the resulting water stress. In this context, promoting water-saving practices, such as alternate wetting and drying technology, is vital to sustain rice production and enhance people's resilience to climatic changes in the Delta. Since this technology is not widely applied in the region, this study hypothesized that a precise water measurement using the Internet of Things technology could facilitate the uptake of the alternate wetting and drying rice cultivation practice. The study applied a rigorous research design to assess the differential benefits of applying the technology with sensors. Participating farmers were divided into three treatment groups that produced rice using either the continuously flooded irrigation technique, manual alternate wetting and drying tubes, or tubes with sensors. The on-farm trials' results showed that the precise water level measurements with the sensors allowed the farmers to maximize the benefits from alternate wetting and drying irrigation. The experimental results indicated an additional 13-20% of water savings over manual alternate wetting and drying. The technology also reduced irrigation energy costs by 25% and moderately enhanced rice yields by 2-11%. This pilot was the first to demonstrate in a large-scale open-field trial that it is feasible and beneficial for smallholder farmers to apply cutting-edge Internet of Things technology to increase water use efficiency in their rice farms. The technology adoption would significantly contribute to sustaining the agriculture-based livelihoods of people in the Delta.

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Adoption of alternate wetting and drying (AWD) irrigation as a water-saving technology in Bangladesh: Economic and environmental considerations

Cited by 50 publications

References 53 publications

The fingerprints of climate warming on cereal crops phenology and adaptation options

The fingerprints of climate warming on cereal crops phenology and adaptation options

Irrigation Decisions and Use of Groundwater in Bangladesh: Perspectives on Some Evolving Crisis

Using the Internet of Things to promote alternate wetting and drying irrigation for rice in Vietnam’s Mekong Delta

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