如(rú )今燕麦草、小杂粮、覆膜马铃(líng )薯(shǔ )等耐旱作物“当(dāng )家”,以水定粮改变了察汗淖(nào )尔(ěr )湿地周边农(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(yǎng )”农业,不使用(yòng )地下水。成本下降,加(jiā )上(shàng )轮作和“水改(gǎi )旱(hàn )”补贴,亩(mǔ )效益可比种(zhǒng )甜菜增加200元人民币左右。
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