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低温季节给温室蔬菜施肥要尽量把微肥稀释后再对蔬菜叶片进行喷施,这样比较经济有效。但喷施过程中要注意掌握好以下五大技巧:浓度浓度适宜才能收到良好的效果,施用浓度过高,不但无益,反而有害。一般来说,各种微肥适宜的喷施浓度是:硼酸或硼砂溶液0.05%~0.25%;钼酸铵溶液0.02%~0.05%;硫酸锌溶液0.05%~0.2%;硫酸铜溶液0.01%~0.02%;硫酸铁溶液0.2%~1%。
Low temperature season to greenhouse fertilization of vegetables to try to dilute the micro-fertilizer on the leaves after spraying, so more economical and effective. However, the spraying process should pay attention to master the following five tips: appropriate concentration concentration to receive good results, the application of high concentrations, not only useless, but harmful. In general, a variety of fertilizers suitable spray concentration: boric acid or borax solution 0.05% to 0.25%; ammonium molybdate solution 0.02% to 0.05%; zinc sulfate solution 0.05% to 0.2%; copper sulfate solution 0.01% 0.02%; ferric sulfate solution 0.2% ~ 1%.