如今(jīn )燕(yàn )麦草(cǎo )、小杂(zá )粮、覆膜(mó )马铃(líng )薯等耐旱作物(wù )“当家”,以水定粮(liáng )改(gǎi )变了察汗淖尔湿(shī )地(dì )周(zhōu )边(biān )农(nóng )业形(xíng )态。庞学峰给记(jì )者算了一笔账:种植(zhí )燕麦草(cǎo ),只搞“雨养”农业(yè ),不使(shǐ )用地下水(shuǐ )。成本(běn )下降,加上(shàng )轮作和“水改旱(hàn )”补贴,亩效(xiào )益(yì )可(kě )比(bǐ )种(zhǒng )甜菜增加200元人民(mín )币左(zuǒ )右。
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