如(rú )今燕麦草、小杂(zá )粮、覆膜马(mǎ )铃(líng )薯等(děng )耐旱作物“当家”,以水定粮改变(biàn )了察汗淖尔湿地周(zhōu )边农(nóng )业形态。庞学峰给记者算了一笔账:种植(zhí )燕麦草,只搞“雨养”农业,不(bú )使用地(dì )下水。成本下降,加上轮作和“水(shuǐ )改旱”补贴(tiē ),亩效益(yì )可比种甜菜(cài )增加200元人民币(bì )左右。
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