The nutrients required for dry tea per 100 kg of tea tree are: N: 5kg; P2O5: 1kg; K2O: 3kg, among the three elements of nitrogen, phosphorus and potassium required by the tea tree, nitrogen is the most, followed by potassium, Phosphorus is the least, so the production is mainly based on the application of nitrogen fertilizer.

Base fertilizer:

The purpose of fertilization: to ensure the nutrients needed for root activities during winter; to provide nutrients for tea bud germination the following year.

Fertilization time: It mainly depends on the time when the above-ground of the tea tree stops growing. Generally, it is applied immediately after the above-ground of the tree stops growing, sooner rather than later. Base fertilizer should be applied in the first and middle of October. Due to the long tea season in the southern tea area, the application time of base fertilizer can be postponed appropriately.

Germination fertilizer:

 1. Purpose of fertilization: After dormancy in winter, the tea tree has strong growth capacity and large amount of fertilizer. Top dressing can promote the thickening of buds and leaves, high yield, good quality and high tenderness.

 2. Fertilization ratio, dosage and method: apply after the tea ground part resumes growth every year. The application period is the best during the initial development of overwintering bud scales, generally about 15-20 days before mining. 15-20 kg / mu of high-nitrogen and high-potassium fertilizers are generally applied in strip ditch application.

Top dressing before summer tea:

1. Purpose of fertilization: to supplement the large consumption of spring tea and ensure the normal fertility of summer and autumn teas, and to maintain high yield and high quality.

2. Fertilization ratio, dosage and method: After the end of spring tea or when the growth of spring shoots basically stops. Application of high nitrogen and potassium compound fertilizer 15-20 kg / mu, generally using strip ditch application.

Top dressing after summer tea:

1. Purpose of fertilization: To supplement the large consumption of summer tea and ensure the normal fertility of autumn tea, to improve the disease resistance of tea trees, and to maintain high yield and quality.

2. Fertilization ratio: after picking in summer or after the growth of summer shoots has basically stopped. Application of high nitrogen and potassium compound fertilizer 15-20 kg / mu, generally using strip ditch application.