如今燕麦草、小杂(zá )粮、覆膜马铃(líng )薯等(děng )耐旱作物“当家”,以(yǐ )水(shuǐ )定粮改变了察汗淖尔湿地周边农业形态。庞学峰给记(jì )者算(suàn )了一笔账:种植燕(yàn )麦草(cǎo ),只搞“雨养”农业,不使(shǐ )用地(dì )下水。成本下降,加上(shàng )轮作和“水(shuǐ )改旱”补贴,亩效(xiào )益可比种甜菜增加(jiā )200元人民币(bì )左右。
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