如(rú )今燕麦草、小杂粮、覆膜马铃薯等耐旱作物“当家”,以水定粮改变了察汗(hàn )淖(nào )尔湿地周边农业形态。庞学(xué )峰给(gěi )记者(zhě )算了(le )一笔账:种植(zhí )燕麦草,只搞“雨养”农业,不(bú )使用地下水。成本下(xià )降,加上(shàng )轮作和“水(shuǐ )改旱”补贴(tiē ),亩效益(yì )可比种甜菜增加200元人民(mín )币左(zuǒ )右。 -
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