The feasibility of high yielding aus-aman-rabi cropping systems in the polders of the low salinity coastal zone of Bangladesh

Bhattacharya, Jayanta; Saha, N. K.; Mondal, Manoranjan K.; Bhandari, Humnath; Humphreys, E.

doi:10.1016/j.fcr.2019.01.007

Cited by 24 publications

(18 citation statements)

References 6 publications

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“…When family labor is accounted for, the cost of maize cultivation increased by 19–25% in all the trial sites, for all fertilizer treatments. A similar observation was made by Bhattacharya et al (2019) for maize in southern Bangladesh, where they detected a 25–29% cost decline when the family labor (that accounted for 50% of the total labor) cost was not imputed.…”

Section: Discussionsupporting

confidence: 74%

“…Focusing on Barisal Division, Krupnik et al (2017) reported that 390,000 ha are either regularly fallowed or under low production intensity during the winter. The same study, as well as Bhattacharya et al (2019) indicated considerable potential to increase cereal production and revenue using available surface water for irrigation. The region however also experiences other biophysical constraints.…”

Section: Introductionmentioning

confidence: 72%

“…Large scale abstraction is not an option. So far, little intensification of crop production has taken place in the Barisal division (Bhattacharya et al, 2019), our study area (Fig. 1).…”

Section: Introductionmentioning

confidence: 96%

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Farming on the fringe: Shallow groundwater dynamics and irrigation scheduling for maize and wheat in Bangladesh’s coastal delta

Schulthess

Ahmed

Aravindakshan

et al. 2019

Field Crops Research

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Highlights Maize and wheat are proposed for diversification, but irrigation advice is limited. Soil moisture content was above or near drained upper limit for depths below 0.5 m. A significant effect of irrigation on yield was observed for maize only, in one year. One irrigation, in addition to a starter irrigation, generally is sufficient to grow a crop. Low-input maize cultivation is not always profitable and low fertilizer rates increase risk of negative returns.

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Section: Discussionsupporting

confidence: 74%

Section: Introductionmentioning

confidence: 72%

See 1 more Smart Citation

Farming on the fringe: Shallow groundwater dynamics and irrigation scheduling for maize and wheat in Bangladesh’s coastal delta

Schulthess

Ahmed

Aravindakshan

et al. 2019

Field Crops Research

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“…For example, one recent study observed 43% to 64% higher crop production due to increasing cropping intensity compared to only improving crop management within current systems in Bangladesh [71]. Bhattacharya et al (2019) demonstrated that 14-20 t ha -1 REY can be achieved with cropping system intensification in the polders of low salinity coastal zones of Bangladesh, with the potential to achieve a gross margin of USD 1200 ha -1 yr -1 [72].…”

Section: Plos Onementioning

confidence: 99%

“…Similarly, farmers have adapted their crop calendar to avoid soil salinity effects which are most extreme from March through May [77,78]; however, this transition may result in low productivity. The yield penalty of growing crops beyond the optimum planting date is well-established in southern Bangladesh [72,78], although this effect can be partially avoided by adapting saline tolerant varieties/crops. Based on previous studies in south-western Bangladesh, we may also interpret that lower tidal flooding in polder areas might be the reason for polders' positive impact on increasing crop productivity and annual crop production, while no effects were observed in non-polder areas (Fig 5…”

Section: Plos Onementioning

confidence: 99%

Factors contributing to farm-level productivity and household income generation in coastal Bangladesh’s rice-based farming systems

et al. 2021

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Large changes have taken place in smallholder farming systems in South Asia’s coastal areas in recent decades, particularly related to cropping intensity, input availability, climate risks, and off-farm activities. However, few studies have investigated the extent to which these changes have impacted farm-level crop productivity, which is a key driver of food security and poverty in rainfed, low-input, rice-based systems. The objective of this study was to conduct an integrated assessment of variables related to socioeconomic status, farm characteristics, and crop management practices to understand the major factors influencing crop productivity and identify promising leverage points for sustainable development in coastal Bangladesh. Using a panel survey dataset of 32 variables from 502 farm households located within polder (coastal embankment) and outside polder systems during 2005–2015, we employed statistical factor analysis to characterize five independent latent factors named here as Farming Challenges, Economic Status, Crop Management Practices, Asset Endowment, and Farm Characteristics. The factor Farming Challenges explained the most variation among households (31%), with decreases observed over time, specifically households located outside polders. Individual variables contributing to this factor included perceived cyclone severity, household distance to main roads and input-output markets, cropping intensity, and access to extension services. The most important factors for increasing crop productivity on a household and per unit area basis were Asset Endowment and Crop Management Practices, respectively. The former highlights the need for increasing gross cropped area, which can be achieved through greater cropping intensity, while the latter was associated with increased fertilizer, labor, and pesticide input use. Despite the importance of these factors, household poverty trajectory maps showed that changes in off-farm income had played the strongest role in improving livelihoods in this coastal area. This study can help inform development efforts and policies for boosting farm-level crop productivity, specifically through agricultural intensification (higher cropping intensity combined with appropriate and efficient use of inputs) and expanding opportunities for off-farm income as key pathways to bring smallholder households out of poverty.

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Evaluation of gravity‐led and energy‐fed drainage for sustaining food security in the polders of the coastal zone of Bangladesh

Mondal

Yadav

Baidya

et al. 2022

Irrigation and Drainage

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Bangladesh is currently self‐sufficient in rice production but faces immense challenges of sustaining that self‐sufficiency because of population growth and climate change. There is little scope to further increase cropping intensity except in the underutilized 1.2 Mha of lands enclosed in the polders of the coastal zone. The main impediment to wide‐scale adoption of more productive cropping systems in the polders is poor drainage that often results in waterlogging. Therefore, a study was conducted in polder 30, in the medium‐salinity region of the south‐west coastal zone, to examine the biophysical and economic feasibility of low‐cost gravity (gravity‐led) drainage. The results show a considerable opportunity to increase rice production in the polders with improved drainage practices. The feasibility of drainage through pumping (energy‐fed) was also assessed, given that there are already situations where gravity‐led drainage is not feasible, and these situations are likely to increase because of climate change‐induced sea level rise and the sinking of polder lands. Energy‐fed drainage was demonstrated to be profitable with a yield gain of at least 1.5 t/ha from just the wet season; further intensification to 50% of polder lands may yield an additional harvest of 3–6 million tons of rice per year. Therefore, investing in improved drainage management in the polders could be a major game changer in sustaining the food security of the nation, especially the climate‐vulnerable polder communities of Bangladesh.

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The feasibility of high yielding aus-aman-rabi cropping systems in the polders of the low salinity coastal zone of Bangladesh

Cited by 24 publications

References 6 publications

Farming on the fringe: Shallow groundwater dynamics and irrigation scheduling for maize and wheat in Bangladesh’s coastal delta

Farming on the fringe: Shallow groundwater dynamics and irrigation scheduling for maize and wheat in Bangladesh’s coastal delta

Factors contributing to farm-level productivity and household income generation in coastal Bangladesh’s rice-based farming systems

Evaluation of gravity‐led and energy‐fed drainage for sustaining food security in the polders of the coastal zone of Bangladesh

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