如(rú )今燕麦草、小杂粮、覆膜(mó )马铃薯等耐(nài )旱(hàn )作物“当家”,以水定粮改变了察汗(hàn )淖(nào )尔湿地周边农(nóng )业形态。庞学峰给记者算了(le )一笔(bǐ )账(zhàng ):种植燕麦草,只搞“雨养”农业,不(bú )使用地(dì )下水。成(chéng )本下(xià )降,加上轮作和“水改旱”补贴,亩效益(yì )可比种甜菜增加200元人民币左(zuǒ )右。 -
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