After the summer Tea harvest, the tea tree has expended a large amount of nutrients. Timely fertilization helps the tea tree quickly restore its growth vigor, providing ample energy for the sprouting and development of Autumn Tea, as well as enhancing resistance to later adverse conditions such as low temperatures and drought, reducing the occurrence of diseases and pests. Today, we will discuss the fertilization management for autumn tea.

Fertilization Requirements. Autumn top-dressing accounts for approximately 20% of the annual fertilization volume. The focus of nutrient management is to supplement nitrogen fertilizer to promote new shoot growth and enhance photosynthesis, while also applying an appropriate amount of phosphorus and potassium fertilizers to strengthen root activity and increase the accumulation of internal substances in the tea leaves, thereby improving the aroma, taste, and color of autumn tea. The supplementation of trace elements like magnesium, zinc, and boron should not be overlooked, especially for tea gardens where the soil lacks these elements; moderate application can significantly improve tea yield and quality.

Fertilizer Selection. Organic and inorganic fertilizers should be used in combination. Sylter bio-organic fertilizer can be applied to provide long-term nutrients and improve soil structure. At the same time, Sylter compound fertilizers with medium-to-high nitrogen content (22-6-12≥40%, 25-5-5≥35%, or 25-8-12≥45%) can be applied to meet the need for rapid replenishment of tree nutrients. Alternatively, foliar spray applications of water-soluble macronutrient fertilizers (20-10-20≥50%) can be chosen to supplement nitrogen, phosphorus, potassium, zinc, boron, iron, and other nutrients, providing more comprehensive nutrition.

Application Method. Strip application or hole application is recommended, at a depth of 10-15 centimeters, close to the root distribution layer of the tea tree, which facilitates root absorption. It is best to loosen the soil lightly before fertilizing, and cover the soil after fertilizing, keeping the soil moist to improve fertilizer utilization efficiency. Avoid fertilizing before or during rain to prevent nutrient loss.