如(rú )今燕麦草、小杂粮、覆膜马铃薯(shǔ )等耐旱作物“当家(jiā )”,以水定粮(liáng )改变了察汗(hàn )淖尔湿地周边农(nóng )业形(xíng )态。庞学峰给记(jì )者(zhě )算了一笔账(zhàng ):种(zhǒng )植燕麦草(cǎo ),只搞“雨养”农(nóng )业(yè ),不使(shǐ )用地下水。成本下降,加上轮作和“水(shuǐ )改旱”补贴,亩效(xiào )益可(kě )比种甜菜增加200元人民币左右。 -
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