如(rú )今燕麦草、小杂(zá )粮、覆膜(mó )马铃薯等耐旱作物“当(dāng )家”,以(yǐ )水定粮改变(biàn )了察(chá )汗淖尔湿地(dì )周(zhōu )边(biān )农业形态。庞学(xué )峰给记者算了一笔账(zhàng ):种植燕麦草,只搞“雨养”农业(yè ),不使(shǐ )用地(dì )下水(shuǐ )。成本下降,加(jiā )上(shàng )轮作(zuò )和“水改旱”补贴(tiē ),亩(mǔ )效益(yì )可比种(zhǒng )甜(tián )菜增加200元人民(mín )币(bì )左右(yòu )。
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