如今(jīn )燕麦草、小杂粮、覆膜马铃薯等耐旱作物“当家”,以(yǐ )水定粮(liáng )改变了察汗淖尔(ěr )湿(shī )地(dì )周边农(nóng )业形态。庞学峰给(gěi )记(jì )者算了一笔账(zhàng ):种植(zhí )燕麦草,只搞“雨养”农业,不使(shǐ )用(yòng )地下水。成本下降,加上(shàng )轮作和“水改旱”补贴,亩效益可比种甜(tián )菜增加200元人民币(bì )左(zuǒ )右。
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