First, it's crucial to protect the root system of the tea plants. As temperatures gradually decrease, the tea plant enters a dormant phase, and the nutrients accumulated in the aboveground parts begin to move down to the roots, storing energy for the next spring's growth. If farming practices at this time are not properly managed, especially if the roots are damaged, it can lead to lower yields. Therefore, during this period, cultivation and fertilization should focus on protecting the root system. The principle is to avoid or minimize root damage. When cultivating, the furrow can be slightly deeper on the center line, while the sides should remain shallow. Fertilizer should be placed in the furrow and applied alternately. After application, the soil should be immediately covered to prevent frost damage and ensure the roots stay healthy through the winter.
Second, it's important to apply more organic fertilizer. Experience has shown that using organic materials such as rapeseed cake, pig manure, cow dung, and rabbit manure in tea gardens is a key practice to enhance both the yield and quality of tea, particularly for high-quality and famous teas. Organic fertilizers, especially basal fertilizers, play a vital role in improving the aroma, color, and taste of premium teas. For example, in the provincial tea breeding demonstration area and the Changzhan Reservoir Management Tea Plantation in Xinchang, which are only 200 meters above sea level, the Long Buddha Longjing produced there is known for its superior color and fragrance, often surpassing that of alpine teas and recognized as a genuine Teyou Longjing. A key part of this success is the annual use of vegetable cakes, such as 250 kg of rapeseed cake in Mushi. Currently, fields that have not yet received proper fertilization should be treated with a combination of organic, compound, and nitrogen-based fertilizers like urea and ammonium bicarbonate to ensure balanced nutrition and long-term soil health. By focusing on organic inputs, farmers can maintain the vitality of their tea plants and produce consistently high-quality crops year after year.
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