如(rú )今(jīn )燕麦草、小杂粮、覆膜马(mǎ )铃薯等耐旱作物“当家”,以水定粮改(gǎi )变了察(chá )汗淖(nào )尔湿地周边农业形态(tài )。庞(páng )学峰给记(jì )者算了(le )一笔账:种植燕麦草,只搞“雨养”农业,不使(shǐ )用(yòng )地(dì )下水。成本下(xià )降,加(jiā )上轮作和“水改旱”补(bǔ )贴,亩效益可(kě )比种甜菜增加200元人民币左右。
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