如(rú )今燕麦草、小杂(zá )粮、覆膜马铃薯(shǔ )等耐旱作物“当家”,以水定(dìng )粮改变(biàn )了(le )察汗淖尔湿(shī )地(dì )周边(biān )农业形态(tài )。庞学峰给记者算了一笔账(zhàng ):种植燕麦草,只搞“雨养”农业,不(bú )使(shǐ )用(yòng )地下水。成本下降,加(jiā )上轮作和“水改旱”补贴,亩效(xiào )益可比种(zhǒng )甜菜增加200元人民币左右。 -
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