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1.浓度 通常各种微肥适宜的溶液喷施浓度为:硼酸或硼砂0.05％～0.25％、钼酸铵0.02％～0.05％、硫酸锌0.05％～0.2％、硫酸酮0.01％～0.02％、硫酸锰0.05％～0.1％、硫酸亚铁0.5％～1％、硝酸稀土0.03％～0.1％、稀土动植宝0.1％～0.15％。浓度不可过高,以免造成危害。若确需要高浓度,以不超过规定浓度的20％为限 2.时期 喷施时期必须根据不同蔬菜品种和不同的微肥用途而定,一般以苗期至初花期前喷施为宜。最好选择在阴天喷施,晴天则宜选在下午至傍晚时喷施,以尽可能延长肥料溶液在蔬菜茎叶上的湿润时间,增强植株吸肥效果。
1. Concentration Spray concentration of various kinds of micro-fertilizer suitable solution is usually boric acid or borax 0.05% to 0.25%, ammonium molybdate 0.02% to 0.05%, zinc sulfate 0.05% to 0.2%, sulfuric acid ketone 0.01% to 0.02% 0.05% ~ 0.1% manganese sulfate, 0.5% ~ 1% ferrous sulfate, 0.03% ~ 0.1% rare earth nitrate, rare earth animal and plant Po 0.1% ~ 0.15%. Concentration can not be too high, so as to avoid harm. If indeed the need for high concentrations of not more than 20% of the specified concentration limit 2 period of spraying must be based on different varieties of vegetables and different uses of micro-fertilizer may be generally sprayed at the seedling to early flowering appropriate. The best choice to spray in the cloudy, sunny should choose spray in the afternoon to evening, in order to maximize the wetting time of fertilizer solution in vegetable stems and leaves, enhance the effect of plant fertilizer.