一、要有足够的喷洒量果树表面肥液的存留量与其吸收量成正相关,在一定范围内,叶面上的存留量又和喷洒量成正比,如超过一定限度则营养液大量流失,当溶液将要从叶面上流下来而未流下时的用量是最适喷布量。二、避免肥液迅速干燥叶面溶液的蒸发极快。肥液迅速干燥,不能被果树吸收,只有遇露水或降雨时,方能再度被利用。叶面喷肥的最适温度为18～25℃,因此在酷夏喷肥,最 First, there should be adequate spray volume Fruit tree surface fertilizer liquid storage capacity is positively correlated with its absorption, within a certain range, the retention on the foliage and spray volume is proportional to, such as more than a certain limit, a substantial loss of nutrient solution, when The amount of solution that will flow down from the foliage without shedding is the optimum amount dispensed. Second, to avoid rapid liquid fertilizer foliar evaporation quickly. Fluid quickly dried, can not be absorbed by fruit trees, only in the event of dew or rainfall, before being reused. The optimum temperature of foliar fertilizer is 18 ~ 25 ℃, so the summer fertilizer, the most