A: The amount of topdressing of fruit trees depends on the needs of fruit trees. The amount of topdressing is more appropriate. It can be determined from the following aspects: see leaf color, leaf size, thinness, waxy layer on the leaf surface; look at the branches. Growth, rhythm, duration, hardness and thickness of branches; fruit size, color, hardness, sugar content, maturity sooner or later, maturity of the orderliness. Especially in the growth period and later stages of fruit trees, it is necessary to observe them. By observing the condition of leaves, branches and fruits, combined with the analysis of the previous year, the fertilization type, total amount of the year, and the total output of fruit, it is possible to determine which elements Give more, those elements are less, how to adjust the amount of fertilizer in the future. Http://Content/0dbd9490-a90a-46e8-a7db-9c392167b219?cType=2 Flood Barrier,Flood Door Barrier,Flood Control Barrier,Flood Stop Barrier Denilco Environmental technology(Suzhou)Co., Ltd. , https://www.wflood.com