Fertilization management of organic tea garden

Guidelines for the use of fertilizers 1. It is forbidden to use chemical synthetic fertilizers, prohibit the use of municipal solid waste, and prohibit the use of hospital waste, garbage and industrial waste containing harmful substances (such as poisonous gas, pathogenic microorganisms, heavy metals, etc.).
2. Human and animal feces must be treated harmlessly before use, such as high temperature fermentation to kill various parasite eggs and pathogens, weed seeds, remove harmful organic acids and gases, and make them harmless to sanitary standards. . Unfertilized manure is strictly prohibited.
3. In principle, organic fertilizers must be used locally for local production. Foreign organic fertilizers can only be used after they have been confirmed to meet the requirements. Commercial organic fertilizers, organic compound fertilizers, foliar fertilizers, and microbial fertilizers must be confirmed or approved by the organic fertilizer demonstration agency before use. The last spray of foliar fertilizer must be carried out 20 days before the tea plantation. When using microbial fertilizers, strictly follow the instructions in the instruction manual.
4. All organic or inorganic (mineral) fertilizers should be used in a manner that does not adversely affect the environment and tea quality. At the same time, all sources of heavy metals and organic pollutants due to fertilization should be cut off.
Allowable fertilizers 1. Organic fertilizer: livestock manure (after harmless treatment), green manure (using cultivated or wild green manure plants as fertilizer), other fertilizers (such as humic acid fertilizer, cake fertilizer, biogas liquid fertilizer and residue, etc.) .
2. Microbial fertilizers: such as rhizobial fertilizers, nitrogen-fixing bacteria fertilizers, phosphorus bacterial fertilizers, nitrate bacterial fertilizers, and compound microbial fertilizers.
3. Semi-organic fertilizer (organic compound fertilizer): organic fertilizer made by adding appropriate amount of nutrient trace elements.
4. Inorganic (mineral) fertilizer: such as mineral potassium fertilizer, mineral phosphate fertilizer (phosphorus ore powder), calcined phosphate (calcium magnesium phosphate fertilizer, deoxyphosphate fertilizer), dolomite, gypsum and so on.
5. Foliar fertilizer: trace element foliar fertilizer (fertilizer mainly composed of CU, FE, MN, ZN, B, MO and other beneficial elements) and foliar fertilizer (natural organic matter) containing plant growth auxiliary substances The extract is inoculated with a fermenting liquid of a beneficial fungus, and a fertilizer prepared by humic acid, alginic acid or amino acid is added).
6. Other fertilizers: food industry that does not contain toxic substances, organic by-products of the textile industry, fertilizers made from bone meal, bone acid waste, amino acid residues, poultry and livestock processing waste, sugar waste, etc.
Harmless treatment often contains various pathogens, viruses, parasite eggs, etc. in organic fertilizers such as human and animal waste. Weeds often contain various pests and diseases, seeds and so on. Therefore, organic fertilizers are generally used before organic tea gardens. It must be treated harmlessly and become harmful and harmless. At present, there are three main methods for the harmless treatment of organic fertilizers, namely physical methods, chemical methods and biological methods. Physical methods such as exposure to sunlight, high temperature treatment, etc., but the loss of nutrients is serious and costly; the chemical method is to eliminate the damage by chemical substances, this method can not be used in the production process of organic tea; biological methods such as heap after inoculation Rot and tanning are the only methods that can be used in the production of organic tea. There are also many methods for stacking organic fertilizers in a harmless manner, such as EM heap rot method, self-made fermentation ripening pile rot method, and factory innocuous treatment.
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