如今燕麦草、小杂(zá )粮、覆膜马铃薯等耐旱作物“当家”,以水定(dìng )粮改变了(le )察汗淖尔(ěr )湿地(dì )周(zhōu )边农(nóng )业形态。庞学峰给记者算(suàn )了一笔(bǐ )账(zhàng ):种(zhǒng )植燕麦草,只搞“雨养”农业,不使用(yòng )地下水。成本下降,加上(shàng )轮作和“水改旱”补贴,亩效益可比种甜菜增加200元人(rén )民币左(zuǒ )右。
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