如今燕麦草、小(xiǎo )杂(zá )粮(liáng )、覆膜马(mǎ )铃薯(shǔ )等(děng )耐旱作物“当家(jiā )”,以水定粮改(gǎi )变(biàn )了察汗淖尔湿(shī )地周边农(nóng )业(yè )形(xíng )态。庞(páng )学(xué )峰给(gěi )记(jì )者算(suàn )了一笔(bǐ )账:种植燕麦草,只搞“雨养”农业,不使用地(dì )下(xià )水。成本下降(jiàng ),加上轮作和(hé )“水(shuǐ )改(gǎi )旱(hàn )”补贴,亩效(xiào )益可比(bǐ )种(zhǒng )甜菜增加200元人(rén )民币左(zuǒ )右(yòu )。
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