Adoption and economics of alternate wetting and drying water management for irrigated lowland rice.

By R. Lampayan, R. Rejesus, G. Singleton, B. Bouman. 2015

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Progressive integrative crop managements increase grain yield, nitrogen use efficiency and irrigation water productivity in rice (2018, background): “It has been reported that, when compared with continuously submerged conditions, AWD can maintain or even increase grain yield (Tuong et al., 2005; Lampayan et al., 2015).”
An international comparison of rice consumption behaviours and greenhouse gas emissions from rice production (2018, background): “…regimes in rice fields have saved 15e30% of water use without impacting yield (Richards and Ole., 2014), enhancing the root function, microbial activity, and mineral transformations (Bhattarai et al., 2005) and reducing water pumping costs and CH4 emissions by up to 70% (Lampayan et al., 2015).”
Impact of alternate wetting and drying on rice physiology, grain production, and grain quality (2017, methodology): “The 77 percentage difference between the water management practices ranged from 17-38% less water 78 used in the AWD trials (Lampayan et al., 2015).”
Effect of Irrigation Regimes and Soil Texture on the Potassium Utilization Efficiency of Rice (2019, unknown): “In regions of Southern China, clay-textured soils offer the highest potassium-supplying potential [28]; most irrigated lowland paddy soils are classified as silt clay [6], clay loam [4], and clay [29].”