Why does micro fertilizer perform well in fruit trees

The mechanism by which foliar spraying of trace element fertilizers on fruit trees has a better effect is that the fruit trees are tall, perennial, and have strong planting characteristics. Most orchards are distributed on infertile soils such as beaches and slopes. In orchard management, the "three elements of fertilizer" of nitrogen, phosphorus, and potassium are often supplied through extensive soil fertilization, while the trace elements consumed over the years cannot be returned or supplemented accordingly. In recent years, the area of orchards has expanded rapidly, and the application of organic fertilizers has not kept up, which has also exacerbated the contradiction of insufficient trace elements, especially with the promotion of high-yield tree species and the introduction of foreign tree species, which have a high demand for trace elements. All of these have intensified the increasing demand for trace elements in fruit trees and the urgency of fertilization. From the analysis of the nutritional characteristics of fruit trees, the transportation process of soil applied micro fertilizers from the roots to the leaves of fruit trees is long, and long-distance transportation and redistribution are more difficult. Also, fruit trees have a low demand for trace elements. If soil fertilization is used exclusively, the amount of fertilizer applied will be small, uneven, costly, and the utilization rate will be low. Therefore, foliar fertilization is an effective method for correcting trace element deficiencies in fruit trees.