如今燕(yàn )麦草、小杂粮、覆膜马铃薯等耐旱(hàn )作物“当家(jiā )”,以水定(dìng )粮改变(biàn )了察(chá )汗(hàn )淖尔湿地周边农(nóng )业形态。庞学峰给(gěi )记(jì )者算了一笔账(zhàng ):种植燕麦草,只搞“雨养”农业,不使用地下水。成本下降,加上轮作和(hé )“水改旱”补贴,亩效益(yì )可比种甜菜增加200元人民币(bì )左右。
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