农作物叶面施肥,是将所用的肥料配成一定浓度的溶液喷洒于植物叶面,使养分通过叶片吸收进入植物体内,是生产上经常采用的一种施肥方法。它的突出优点是用量少、吸收快、效果明显,不受土壤环境因素影响,养分利用率高,成本低,增产效果显著,尤其在土壤环境不良,水分过多或干旱,土壤过酸过碱造成根系吸收作用受阻和作物缺素急需营养以及作物生长后期根系活力衰退时,采用叶面追肥可以弥补根系吸肥的不足。但叶面施肥效果与使用方法有很大关系。因 Foliar fertilization of crops, the fertilizer is used to a certain concentration of the solution sprayed on the plant foliage, so that nutrients absorbed into the plant through the leaves, the production is often used in a fertilization method. Its outstanding advantages are less dosage, fast absorption, obvious effect, not affected by soil environmental factors, high nutrient utilization rate, low cost and remarkable stimulation effect, especially in poor soil environment, excessive water or drought, Alkali cause root blockade and crop shortage of nutrients urgently needed and the late root growth of crop recession, the use of foliar fertilizer can make up for lack of root absorption. However, foliar fertilization effect and the use of a great relationship. because