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E-book Nutriotional Recommendations for Rice
Worldwide, around 79 million ha of rice is grown under irrigated conditions. While this is only half of the total rice area, it accounts for about 75% of the world's annual rice production. In Asia, nearly 60% of the 138 million hectares devoted to rice production annually is irrigated, where rice is often grown in monoculture with two to three crops a year depending upon water availability. Other rice ecosystems include the rainfed lowland (35% of total rice area), characterized by a lack of water control, with floods and drought being potential problems, and the upland and deepwater ecosystems (5% of total rice area), where yields are low and extremely variable.
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