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  如今(jīn )燕(yàn )麦草、小杂粮、覆膜马铃薯等耐旱作物“当家”,以水定粮(liáng )改变了察汗(hàn )淖(nào )尔湿地周(zhōu )边农业形态。庞学峰给(gěi )记(jì )者算了(le )一笔(bǐ )账:种植(zhí )燕麦草,只搞(gǎo )“雨(yǔ )养(yǎng )”农(nóng )业,不(bú )使(shǐ )用地下水。成本(běn )下降,加(jiā )上(shàng )轮作和“水改(gǎi )旱”补(bǔ )贴(tiē ),亩(mǔ )效益可比种甜菜增(zēng )加200元(yuán )人(rén )民币(bì )左右。

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