如今燕麦(mài )草、小杂粮、覆膜马铃薯等耐旱(hàn )作物“当家”,以水定粮改变(biàn )了察汗(hàn )淖(nào )尔湿(shī )地周边农业形态。庞学峰给(gěi )记(jì )者算了一笔账:种(zhǒng )植燕麦草,只搞(gǎo )“雨(yǔ )养”农业,不使(shǐ )用(yòng )地下水。成(chéng )本下降(jiàng ),加上(shàng )轮作和“水改旱”补贴,亩效益可比种甜菜增加200元人民币左右。
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