如(ru)今燕(yan)麦草、小杂粮、覆膜(mo)马铃(ling)薯等(deng)耐旱作物(wu)“当家”,以水(shui)定粮(liang)改变了察(cha)汗(han)淖(nao)尔湿地(di)周边农(nong)业(ye)形态。庞学峰给(gei)记者算了一笔(bi)账:种植燕(yan)麦草,只搞“雨养(yang)”农(nong)业,不(bu)使(shi)用(yong)地(di)下水。成本下降(jiang),加上轮作和“水改旱”补贴,亩效益可(ke)比(bi)种甜菜增(zeng)加200元人民币左(zuo)右。
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