Improving Rice Yield and Economic Benefits with Alternate Wetting and Drying Irrigation
Author Information
Author(s): Qi Dongliang, Chen Si, Wenjun Yue, Duan Yonggang
Primary Institution: School of Hydraulic Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, China
Hypothesis
AWD interacts with the blended use of CRNF and CU to delay leaf senescence by improving photosynthesis, antioxidant defense system, osmoregulation, and N assimilation.
Conclusion
AWD combined with the mixed application of CRNF and CU not only delayed leaf senescence but also improved the net income of rice.
Supporting Evidence
- AWD significantly increased net income compared to conventional irrigation.
- N2 and N3 treatments improved physiological parameters and reduced leaf senescence.
- AWD reduced water costs and labor costs associated with irrigation.
- AWD combined with N2 treatment achieved the highest net income in both years.
Takeaway
This study shows that using less water and a special type of fertilizer can help rice plants grow better and make more money for farmers.
Methodology
Field experiments were conducted with two irrigation regimes and three nitrogen compounding modes over two years.
Limitations
The impacts of different ratios of CRNF and CU on leaf senescence remain unclear.
Participant Demographics
Rice plants in Jingzhou City, Central China.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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