Fertilizer is the food for the growth of tea trees and is the material basis for tea production and quality improvement. Therefore, fertilization plays an important role in the growth of tea plants and the yield and quality of tea. Good fertilization technology can maximize the effect of fertilization, maintain and improve the good quality of tea, maintain the vigorous growth of tea, and at the same time conducive to the restoration and increase of soil fertility. However, improper fertilization can not only increase the output of tea, but also lead to a serious decline in the quality of tea, and even adversely affect the growth of tea plants. Therefore, the fertilization requirements of tea gardens should be based on the local system, and appropriate fertilizer types and fertilization methods should be used in order to give full play to the fertilizer effect and achieve the purpose of fertilization.
Tea fertilization should consider factors such as variety characteristics, soil conditions, yield levels, cultivation methods and other factors. In addition to organic fertilizer, inorganic fertilizer used in conjunction.
Organic manure is a comprehensive fertilizer, rich in organic matter, and has a slow and lasting fertilizer effect. It has a good effect on the growth of tea plants, improves tea yield and quality, and can improve soils. Therefore, fertilization must be dominated by organic fertilizers. The traditional organic fertilizer used for tea is manure, manure, cake, compost, and green manure. Currently, special organic fertilizers for tea have been introduced on the market, which are more targeted, efficient, and easier to apply than traditional organic fertilizers. Inorganic fertilizers are fast-acting fertilizers, which have a fast fertilizer effect. In the season of tea plant growth and picking, they need to consume a large amount of nutrients and often lack certain elements. Therefore, they must be supplemented in time to meet the normal needs of tea growth. Therefore, inorganic quick effects can be applied. Fertilizer is necessary. The conventional nitrogen fertilizers for tea used in traditional fertilizers include ammonium sulfate, ammonia nitrate, ammonia bicarbonate, and urea. Phosphorus fertilizers include calcium superphosphate, phosphate rock powder, and bone meal. Potash fertilizers include potassium sulfate and potassium chloride. At present, the main application of special compound fertilizer for tea.
Specific measures and dosages are: 1. Base fertilizer (mid-late and late October - end of November): 40% nitrogen fertilizer, 50% phosphate fertilizer, and 40% potassium fertilizer; 2. The first top dressing (at the end of May): 30% nitrogen fertilizer, 25% phosphate fertilizer, Potassium fertilizer 30%; 3, the second top dressing (at the end of July): nitrogen fertilizer 30%, phosphate fertilizer 25%, potassium fertilizer 30%.
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