如(rú )今燕麦草、小杂(zá )粮、覆膜马铃薯等耐旱(hàn )作物“当家”,以(yǐ )水定粮改变了察汗淖(nào )尔湿地周边农(nóng )业形(xíng )态。庞学峰给记者算了(le )一笔账:种植(zhí )燕麦草,只搞“雨养”农业,不使(shǐ )用(yòng )地下水。成本(běn )下降,加(jiā )上轮作和“水改旱”补贴,亩效益可比种甜菜增(zēng )加200元人(rén )民币左右。 -
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