如今燕麦草、小杂粮、覆膜(mó )马铃薯等耐旱作物“当家”,以(yǐ )水定粮改(gǎi )变(biàn )了察汗(hàn )淖(nào )尔湿地(dì )周边农(nóng )业形态(tài )。庞学峰给记者(zhě )算了一笔账:种植燕麦草,只搞“雨养”农业(yè ),不使(shǐ )用地下水。成本下降,加(jiā )上(shàng )轮作和“水改(gǎi )旱”补贴(tiē ),亩效益可比种甜菜增加200元人(rén )民币左右。
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