Answer: The external top dressing can directly obtain the nutrients from the branches, leaves and fruits of the canopy. It is not controlled by the tree nutrition distribution center. The fertilizer is even and thoughtful, and the nutrient supply and demand can be adjusted in time. It is not restricted by soil conditions and can avoid fertilizer. In the soil, the antagonism of loss, fixation or other factors, the fertilizer can be directly absorbed by the leaves, branches and fruits, reducing losses and improving the utilization rate of fertilizer. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Sunflower Seeds,Builk Sunflower Seeds,Roasted Sunflower Seeds,Sunflower Seeds Kernels Shanxi Fret International Trade Co.,Ltd , https://www.fretfruit.com