Insufficient supply of organic fertilizers for tea gardens, poor soil fertility, and poor water and fertility retention capacity. Some tea gardens use high nitrogen fertilizers, and the proportion of phosphorus and potassium fertilizers is insufficient. Mg, S, and boron are scarce in the presence of trace elements. South China and other tea regions are part of the tea plantations. Excessive application of nitrogenous fertilizer causes soil acidification to be more common and other issues. The following principles of fertilization are proposed: (1) Organic fertilizers are added and applied organically and inorganically; (2) Based on the soil fertility conditions and yield levels, the amount of nitrogen fertilizers is appropriately adjusted to increase phosphorus, For the application of potassium and magnesium fertilizers, pay attention to the supplement of nutrients such as sulfur and boron; (3) The tea gardens where soil acidification occurs can be improved by applying dolomite powder, quicklime, etc.; (4) Combining high-yield and high-quality cultivation techniques. Fertilizer amount and method (1) General production of tea gardens: nitrogen fertilizer (N) 20-30 kg/mu, phosphate fertilizer (P2O5) 4-6 kg/mu, potassium fertilizer (K2O) 6-10 kg/mu. (2) Magnesium-, zinc-, and boron-deficient tea plantations: The soil was treated with magnesium fertilizer (MgO) of 2-3 kg/mu, zinc sulfate (ZnSO47H2O) of 1 kg/mu, and borax (Na2B4O710H2O) of 1 kg/mu. (3) Sulfur-deficient Tea Garden: Select sulphur-containing fertilizers such as ammonium sulfate, potassium sulfate, and superphosphate. In principle, organic fertilizer, phosphorus, potassium, and magnesium are mainly used in autumn and winter basal fertilizers, and nitrogenous fertilizers are applied in divided portions. Among them, base fertilizer: apply all organic manure, phosphorus, potassium, magnesium, trace element fertilizer and nitrogen fertilizer accounting for 30% to 40% of the annual dosage. The appropriate period of fertilization is between the end of September and the end of October after the end of the tea season. In combination with deep plowing, the depth of application is about 20 cm. Nitrogen fertilizer is generally used for topdressing. The top dressing period is determined according to the growth of tea trees and the tea picking. The germination fertilizer is applied about 30 days before the spring tea, accounting for about 30% to 40% of the annual consumption. Summer tea is topped with spring tea. Before summer tea begins to grow, it usually takes about 20% of the whole year in mid-to-late May. Autumn tea is topdressed after the end of summer tea. It is generally used in mid-to-late July, and the dosage is about 20% of the whole year. . Surgical Drape And Equipment Cover Nonwoven Surgical Drape,Disposable Surgical Drape,Disposable Surgical Pack Kits,Sterile Surgical Medical Drape ShaoXing SurgeCare Medical Products Co., Ltd. , https://www.sxsurgecaremedical.com