Walnut trees generally take cold-proof measures from mid-November to early December. 1, buried in the cold For the 1~2 year old saplings where the open field cannot be safely wintered, the whole tree body is bent to one side and covered with soil. This method is the most effective and reliable measure for preventing and controlling the pumping. 2, soil and cold protection A mound of soil is cultivated within 30 cm of the base of the seedling to prevent frostbite and neck joints. In the coming spring, when the temperature rises and stabilizes, it is removed and the tree is flattened. 3, painted white and cold Whitening of young trees can alleviate the temperature difference between the yin and yang of the trunk, and the cold-proof effect is better. It can be applied before the soil is frozen. The formula of the whitening agent is: 0.5 kg of salt, 6 kg of quicklime, 15 kg of fresh water, and then added with a proper amount of adhesive and residue of stone sulphur mixture to spread the young branches. 4. Spray the tree trunk and branches with the tree-protecting general emulsion 100 times solution (50 kg). The film-forming material can protect the flower buds and branches from wintering and avoid freezing damage. Due to the large core of the walnut branches, high water content and poor cold resistance, it is vulnerable to freezing damage in cold and dry areas in the north, causing the branches to dry up. Therefore, in order to ensure the normal growth of saplings and prevent freezing damage, winter cold-proof work should be strengthened to mitigate the hazards. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Fluorine-Containing Benzoic Acid The Fluorine-Containing Benzoic Acid series is very common form of the fluorochemical compounds, it has many product types and derivatives. Most of products are in white crystalline powder, some of products are Colorless monoclinic prismatic crystals. It was widely used as fungicide intermediates, also used in the etching process. The Fluorine-Containing Benzoic Acid series are mostly in high value-added , less polluting products. We are trying our best to make our production dock with market to give accurate and effective services for the market . Containing Benzoic Acid,2,3-Difluorobenzoic Acid,Methoxybenzoic Acid Taizhou Volsen Chemical Co., Ltd. , https://www.volsenchem.com