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- W2185638083 abstract "Traditional lowland rice production in Asia requires much water: it consumes more than 50% of all irrigation water used in Asia. Water resources are, however, increasingly getting scarce and expensive. The supply of water for irrigation is endangered by declining water quality, declining resource availability, increased competition from other users, and increasing costs. Rice is especially sensitive to declining water availability since it requires more water than any other food crop and it has relatively low water-use efficiency. At the farm level, water inputs can be reduced by decreasing the relatively large and unproductive losses from seepage, percolation, and evaporation. In the last decade, researchers have studied and developed a number of water-saving irrigation technologies such as saturated soil culture and alternate wetting and drying (AWD) that can drastically diminish these losses. Under these technologies, yields may decline, but they have demonstrated that they save water and increase water productivity. Unfortunately, adoption by farmers is low because extension activities are lacking. Compared with heavy investments needed to develop new water resources, the adoption of water-saving technologies by farmers is low-cost and has great potential to save water. In 2001, we initiated a farmer-participatory project called ‘Technology Transfer for Water Saving (TTWS)’ to transfer and promote AWD among farmers in the Philippines. The TTWS was conceived to develop and implement a framework for transfer, adaptation, and adoption of knowledge on water-saving technologies. Actual measurements from farmers’ fields showed that AWD had the same yield as farmers’ practice and that, on average, it saved 16–24% water and 20-25% costs. Group factors identified for successful collective action to facilitate AWD adoption are group size, service area, profitability, high level of excludability, enhancement of existing social capital, strong leadership to deal with free riders, and close linkages" @default.
- W2185638083 created "2016-06-24" @default.
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- W2185638083 date "2005-01-01" @default.
- W2185638083 modified "2023-09-27" @default.
- W2185638083 title "Management strategies for saving water and increasing its productivity in lowland rice-based ecosystems" @default.
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