如(rú )今燕麦草、小杂(zá )粮、覆(fù )膜马铃薯等(děng )耐旱作物“当家”,以水定粮改变了察汗淖(nào )尔湿地周边(biān )农业形态。庞学峰给记(jì )者算了一笔账:种植燕麦草,只搞(gǎo )“雨养”农业,不使(shǐ )用地(dì )下水。成本下降(jiàng ),加上轮作和“水改旱”补贴,亩效(xiào )益可(kě )比种(zhǒng )甜菜增(zēng )加200元人(rén )民币(bì )左右。 -
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