Reduction of blue and total water footprints per unit biomass yield of silage maize with grey water footprint input in subsurface drip irrigation
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View abstract on PubMed
Summary
This summary is machine-generated.Using recycled wastewater for irrigating silage maize significantly reduces water footprints. Subsurface drip irrigation with full wastewater application offers the most sustainable approach for managing scarce freshwater resources.
Area Of Science
- Agricultural Science
- Environmental Science
- Water Resource Management
Background
- Irrigated agriculture significantly impacts freshwater resources, necessitating strategies to reduce water footprints.
- Recycled wastewater presents a potential solution for increasing water availability in agriculture.
Purpose Of The Study
- To investigate the impact of recycled wastewater irrigation on water footprints of silage maize.
- To compare different irrigation methods (SSDI, SDI, FI) and water sources (recycled wastewater, freshwater).
Main Methods
- A 2-year field study evaluating three irrigation levels of recycled wastewater and freshwater.
- Assessment of blue, green, grey, and total water footprints per unit yield for silage maize.
- Comparison of subsurface drip irrigation (SSDI), surface drip irrigation (SDI), and furrow irrigation (FI).
Main Results
- Subsurface drip irrigation (SSDI) resulted in significantly lower blue and total water footprints compared to SDI and FI.
- Full recycled wastewater irrigation consistently yielded the lowest blue, green, and total water footprints across all irrigation methods.
- Full wastewater irrigation under SSDI achieved the lowest total water footprint per unit fresh biomass.
Conclusions
- Full irrigation with recycled wastewater via SSDI is a highly effective strategy for sustainable water resource management.
- This approach significantly reduces the demand on scarce freshwater resources in agriculture.
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