如(rú )今燕麦草、小(xiǎo )杂粮、覆膜马铃薯等耐旱(hàn )作物“当(dāng )家(jiā )”,以(yǐ )水定粮改变了察汗淖尔湿(shī )地周边(biān )农业(yè )形态。庞学峰给记者算了一笔账(zhàng ):种植燕麦草,只搞“雨养”农(nóng )业,不(bú )使(shǐ )用地下水。成(chéng )本下降,加(jiā )上轮作和“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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