Doctoral Thesis
Effectiveness of shallow drains in alleviating waterlogging and salinity in coastal clay soils of Bangladesh
Doctor of Philosophy (PhD), Murdoch University
2022
Abstract
Agricultural productivity in the Ganges coastal region of Bangladesh is severely limited by a range of environmental constraints, including waterlogging, salinity and drought. Excess water at the end of the wet season delays dry (rabi) season crop establishment. Then, during the rabi season, unseasonal rainfall often creates waterlogging. Later planted rabi crops face drought, salinity and pre-monsoon rainfall at the end of the season, while waterlogging and salinity together may severely limit crop production during the rabi season; all stresses reduce yield. Therefore, farmers in this region generally keep the land fallow in the rabi season. This thesis has examined the opportunity to increase crop yield and cropping intensity by alleviating waterlogging and salinity through shallow drains and preserving soil water late in the growing season using straw mulch. Before this study, the effectiveness of shallow drains in waterlogged-saline clay-textured soil of the Ganges coastal region and plant responses to drainage effects had not been tested...
Details
- Title
- Effectiveness of shallow drains in alleviating waterlogging and salinity in coastal clay soils of Bangladesh
- Authors/Creators
- Mohammad Islam
- Contributors
- Richard Bell (Supervisor) - Murdoch University, Centre for Sustainable Farming SystemsEd Barrett-Lennard (Supervisor) - Murdoch University, Centre for Sustainable Farming SystemsM. Maniruzzaman (Supervisor)
- Awarding Institution
- Murdoch University; Doctor of Philosophy (PhD)
- Identifiers
- 991005562170307891
- Murdoch Affiliation
- School of Agricultural Sciences
- Resource Type
- Doctoral Thesis
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