如(rú )今(jīn )燕麦草、小杂粮、覆(fù )膜马铃薯等耐旱作物“当家”,以(yǐ )水定粮改变了察汗(hàn )淖(nào )尔湿地周边农业形态。庞学峰给(gěi )记(jì )者算了一笔账(zhàng ):种植(zhí )燕麦草,只搞“雨(yǔ )养”农业,不使(shǐ )用(yòng )地下水。成本(běn )下降,加上轮作和“水改旱(hàn )”补贴(tiē ),亩效益(yì )可比种甜菜(cài )增加200元人民币左右。 -
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