1. Main trunking or dressing. For the orchard that does not promptly whitewash, it is necessary to apply whitening to the trunk (whitening agent: 10 pounds of quicklime, half a catty of sulfur powder, 2 salts of salt, 2 oils of animal fat, and the appropriate amount of water to make a paste). The use of barnyardgrass or long film, sackcloth, etc. to wrap the trunk, also has a good cold and antifreeze effect. 2. The tree tray is used to hold earth. Adult trees need to cultivate about 10 centimeters of the tree under the canopy drip line, the trunk should be cultivated to 8-10 centimeters on the grafted interface, the sapling tree tray should be about 15 centimeters of earth, and the soil for soil use should be loose and finely divided. Too wet or too viscous, it is best to add some husks, pods, etc., or to clean up the drain rakes from the rows for earth-fetching. Do not take the soil in the tree tray to avoid damaging the roots. Before and after the convulsion, the soil should be opened and the rot of the grafted interface should be avoided due to the high temperature and humidity. At the same time, straw, straw, weeds, leaves, green manure or plastic films are covered on the surface of orange tree or citrus strips to reduce radiation on the ground. 3. Bunch branches and set up a triangle shed. Use different coverings to cover the orange tree. For nursery land, take a flat shelter; for the saplings, insert three bamboo sticks around the orange trees, and then surround the straw or straw, straw, etc., and open to the south. For trees born 4-10 years old, the canopy is larger, and the branches can be tightly tied with straw ropes and covered with a film or shade net. Food Phosphate,Food Grade Sodium Tripolyphosphate,Sodium Tripolyphosphate Food,Polyols Erythritol Shanghai J.Shine Co.,Ltd , https://www.jshinechem.com