In order to ensure the high yield and quality of organic tea production, the organic tea plantation must be re-fertilized with basal fertilizer. Each year, the farmland organic fertilizer (corral, excrement, manure, etc.) is used for 1500-2500 kg per kilogram of organic fertilizer. ~ 250 kg. After the tea garden is established, it is necessary to strengthen the application of organic fertilizers, in particular organic fertilizers. The use of organic tea garden fertilizers is strictly required. It is forbidden to use chemical synthetic fertilizers. It is forbidden to use municipal wastes and sludges, waste manure in hospitals, and industrial wastes containing harmful substances (such as toxic gases, pathogenic microorganisms, heavy metals, etc.), human and animal manure, etc. Before use, it must be harmlessly treated to make it harmless and sanitary. In principle, organic fertilizers are used locally in situ. Exogenous organic fertilizers should be used only after they have been confirmed to meet the requirements. Commercial organic fertilizers, organic compound fertilizers, foliar fertilizers, and microbial fertilizers must be clearly used before they can be used or certified by an organic certification body. At the same time, all heavy metals brought in by fertilization should be eliminated. The source of pollution of organic pollutants. Earhook Hearing Aid Earhook Hearing Aid Shenzhen Sunshine Technology Co.,Ltd , https://www.yatwinsz.com