如(rú )今燕麦草、小(xiǎo )杂(zá )粮、覆膜马铃薯等耐旱作物“当家”,以水定粮改变(biàn )了察汗(hàn )淖尔湿(shī )地周(zhōu )边农业形态。庞学峰(fēng )给记者算了一笔账(zhàng ):种植燕麦(mài )草,只搞“雨养”农业,不使(shǐ )用(yòng )地(dì )下水。成本(běn )下降,加上轮(lún )作和“水改旱”补贴,亩效益可比(bǐ )种甜菜增加200元人民币左(zuǒ )右。
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