微肥是植物生长发育过程中不可缺少的营养元素,把微肥稀释后作叶面肥喷施,花钱少、见效快、效益高。其技术要点如下。 喷施浓度 浓度适宜才可收到良好的效果,特别是浓度不可过高,否则不但无益反而有害。各种微肥喷施的适宜浓度为:硼砂或硼酸0.05％～0.25％,钼酸铵0.02％～0.05％,硫酸锌0.05％～0.20％,硫酸锰0.05％～0.10％,硫酸亚铁 Micronutrient is an indispensable nutrient element in the process of plant growth and development. After the fertilizer is diluted and applied to foliar fertilizer, it is less expensive, quicker and more effective. The technical points are as follows. Spraying the concentration of appropriate concentration can receive good results, especially the concentration can not be too high, otherwise not only useless but harmful. Suitable concentrations of various micro-fertilizers are: borax or boric acid 0.05% ~ 0.25%, ammonium molybdate 0.02% ~ 0.05%, zinc sulfate 0.05% ~ 0.20%, manganese sulfate 0.05% ~ 0.10%, ferrous sulfate