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从 1994年开始,我站试验推广烟台市福山区精细化工厂生产的氨基酸锌液体肥料。使用方法是,谢花后两周喷300倍氨基酸锌液,对较严重的果园半月后再
Since 1994, I have been experimenting with the promotion of amino acid zinc liquid fertilizer produced by Fushan Fine Chemical Plant in Yantai City. The use of method is, two weeks after Xiehua spray 300 times zinc amino acid solution, more serious orchard half a month later