叶面肥是指可以用来进行叶面喷施的肥料。由于叶面施肥较根际施肥相比具有用量少、吸收快、投入少、肥效高的特点。我区近年来叶面肥料的发展较快 ,仅１９９８～１９９９年自治区土肥站就对一百余个叶面肥品种办理了登记手续。叶面肥大致可分为氮磷钾营养元素类、微量元素类、? Foliar fertilizer is a fertilizer that can be used to foliar spray. Compared with rhizosphere fertilizer, foliar fertilizer has the characteristics of less dosage, faster absorption, less input and higher fertilizer efficiency. In recent years, the development of foliar fertilizer in our district has been rapid. Only the soil and fertilizer stations in the autonomous region from 1998 to 1999 handled the registration procedures for more than 100 varieties of foliar fertilizer. Foliar can be roughly divided into nitrogen, phosphorus and potassium nutrients, trace elements,?