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田里找金子:现在才开始做硼肥,是不是太迟了?还有多长的生命?现在做什么微量元素最热门,最有前途? (2008-03-23 19:04)
雨辰飞翔:支持楼主!
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溺水的鱼:安徽无为,其他的大部分是兼做农业肥料的。 (2013-01-08 14:30)
寂寞的猎人:这个问题本人也正在研究之中,待有结果了一定第一个告诉你! (2008-04-15 10:55)
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