如(rú )今燕(yàn )麦草、小杂粮、覆膜马铃薯等耐旱作物“当(dāng )家”,以水定(dìng )粮改变了察汗淖尔湿(shī )地周边农(nóng )业形态。庞学峰给(gěi )记者算了一笔账:种植燕麦草,只搞“雨养”农业,不使(shǐ )用地下水(shuǐ )。成本下降(jiàng ),加上轮作和“水改旱(hàn )”补贴(tiē ),亩效(xiào )益可比种甜菜增加200元人民币左右。
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