Alternate wetting and drying (AWD)--using less water to grow rice
Also see: http://www.knowledgebank.irri.org/ewatermgt/courses/course1/resources/presentations/CopingAWD.pdf Across the globe, water is fast becoming a precious commodity as more and more people use it for the household, industry, and agriculture. Since almost half of the worlds population depends on rice as its staple food, rice uses the highest amount of water in agriculture. By 2025, 15 to 20 million hectares of irrigated rice fields may suffer from water scarcity. To face this challenge, scientists at the International Rice Research Institute (IRRI; http://irri.org) have developed a technique called alternate wetting and drying or AWD, which uses less water to grow rice. This video provides a glimpse on how to apply AWD in irrigated rice fields.
Comments
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INNOVATIVE TECHNIQUE TO ADOPT IT FOR DRYLAND FARMERS
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Can we apply this technique through out the world?
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I was wondering if its 30 or 40 cm, since other sources choose a length of the pipe of 30 cm.
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it's not actually using less water. It's using water in energy-efficient way Instead of flooding the fields in uncontrolled manner which would result in unnecessary usage =]
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great video
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It's useful. Some provinces in VN used it.
6m 28sLenght
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