如(rú )今燕麦草、小杂粮、覆膜马铃薯等耐旱作物(wù )“当(dāng )家”,以(yǐ )水定粮改变了察汗淖尔湿地(dì )周边农业(yè )形态。庞学峰给(gěi )记(jì )者(zhě )算(suàn )了一(yī )笔账(zhàng ):种植燕(yàn )麦草(cǎo ),只搞“雨养”农业,不使(shǐ )用地下水。成(chéng )本下降(jiàng ),加上轮作和“水改(gǎi )旱”补贴(tiē ),亩(mǔ )效益(yì )可比(bǐ )种甜菜(cài )增(zēng )加200元人民(mín )币(bì )左右。
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