如(rú )今燕麦草、小杂(zá )粮、覆膜马铃薯等耐(nài )旱作物(wù )“当家”,以水定粮改变了(le )察(chá )汗淖(nào )尔湿(shī )地周边农业形态。庞学峰给记者算了一笔账(zhàng ):种植燕麦草,只搞“雨(yǔ )养”农业,不使(shǐ )用(yòng )地下水(shuǐ )。成本下降(jiàng ),加上(shàng )轮作和“水改旱”补贴,亩效益可比种甜菜增加200元人民币左右。
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