如(rú )今燕麦草、小(xiǎo )杂粮、覆膜马(mǎ )铃薯等耐旱作物“当家”,以水定粮改变了(le )察汗(hàn )淖尔湿(shī )地(dì )周边农业形态。庞学峰给记者算了(le )一笔账:种植燕麦草,只搞“雨养”农(nóng )业,不使用地下水。成本下(xià )降,加(jiā )上轮(lún )作和“水改旱”补贴(tiē ),亩效益可比种甜菜增加(jiā )200元(yuán )人民币(bì )左右。
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