农作物除根系以外,其茎、叶和幼果穗均有不同程度的吸肥能力。因此,在土壤施肥的基础上,还可进行叶面喷肥,以满足作物对某些营养元素的急需。叶面喷肥也因简单易行、用肥量少、发挥作用快, 尤其是许多含有多种微量元素叶肥的出现,而备受广大农户的欢迎。一、叶面喷肥的作用 1.矫治微量元素缺 In addition to the crop outside the root system, the stems, leaves and young ears have different degrees of fat absorption capacity. Therefore, on the basis of soil fertilization, foliar fertilization can also be carried out to meet the crop’s urgent need for certain nutrient elements. Foliar fertilizer because of simple and easy, with less fat, play a role fast, especially in many containing a variety of trace elements of leaf fertilizer appears, and has been welcomed by the majority of farmers. First, the role of foliar fertilizer 1. The lack of trace elements correction