如今燕麦草、小杂粮(liáng )、覆膜马(mǎ )铃(líng )薯等耐旱作物“当家”,以水定粮改变了(le )察汗淖(nào )尔湿(shī )地(dì )周边农(nóng )业(yè )形态。庞学峰给(gěi )记者算了一笔账(zhàng ):种植燕(yàn )麦草,只搞“雨养”农业(yè ),不使(shǐ )用地(dì )下水。成本下降(jiàng ),加上轮作和“水改旱”补贴,亩效益可比种甜菜(cài )增加200元人民币左右。
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