Tea Garden Fertilization Management Procedures
Category:
Green Ecological Tea
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Release date:
2015-08-12
1. Based on soil physicochemical properties, tea tree vigor, expected yield, tea-processing type, and climatic conditions, determine appropriate fertilizer types, application rates, and timing, and implement balanced fertilization in tea gardens to prevent both nutrient deficiencies and excessive fertilization.
2. It is advisable to apply ample organic fertilizers; chemical and organic fertilizers should be used in combination, avoiding the exclusive use of chemical fertilizers and mineral‑based fertilizers. Tea‑specific fertilizers are recommended.
3. Before application, farmyard manure and other organic fertilizers shall undergo harmless treatment, and the levels of contaminant substances in organic fertilizers shall comply with the limits specified in the Table of Permissible Contaminant Levels for Organic Fertilizers. Microbial fertilizers shall meet the requirements of NY/T 227.
4. Fertilization is divided into base fertilizer and topdressing.
5. Base fertilizer should primarily consist of organic matter, applied in deep trenches during the autumn of the same year at a depth of at least 20 cm. Typically, apply 200–400 kg of oilseed cake fertilizer or commercial organic fertilizer, or 1,000–2,000 kg of farmyard organic manure per 667 m². Depending on soil conditions, supplement with phosphate, potash, and other essential nutrients as needed.
6. Topdressing can be applied multiple times in accordance with the tea plant’s growth cycle, primarily using chemical fertilizers. Apply the fertilizer by opening trenches 15 to 30 days before the start of the tea harvest, with trench depths of approximately 10 cm. For chemical nitrogen fertilizers, the application rate per 667 m² should not exceed 15 kg (expressed as pure nitrogen) per application, and the annual total application should not surpass 60 kg. After fertilization, promptly cover the fertilizer with soil.
7. Depending on the growth condition of the tea plants, foliar fertilizers may be applied; such products must be registered with the Ministry of Agriculture. Foliar fertilization should be used in conjunction with soil application, and its use should be discontinued 10 days prior to harvest.
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The “Mangshi 7,000-ton Green Food Tea Industrialization and Export Processing Plant Project,” invested in and constructed by the company within its industrial park, covers a total land area of 20,828 square meters and has a total floor area of 13,285 square meters. The project primarily includes one production line for refined green tea and black tea, one production line for Pu’er tea and De’ang sour tea, as well as associated ancillary facilities. The total investment exceeds RMB 55 million, fully financed through the company’s own funds.
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