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Uploaded by liberty81714 on Oct 14, 2008
农民讲述:稻田养鸭,令他的田不怕虫害,收成好。稻田养鸭在中国已有400多年历史,在气候变化条件下,虫灾将更加频繁,稻田养鸭的优势愈加明显。
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