如(rú )今燕麦草、小杂(zá )粮(liáng )、覆膜马铃(líng )薯等耐旱(hàn )作物“当家”,以水定粮(liáng )改变了察汗淖尔湿(shī )地周边农业形态。庞学峰给(gěi )记者算了(le )一笔账(zhàng ):种植燕(yàn )麦草,只搞“雨养”农业,不使(shǐ )用地下水。成本下降,加上(shàng )轮作和“水改旱”补贴,亩效益可比种甜菜增(zēng )加200元(yuán )人民币(bì )左右。 -
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