The Urgent Urgency of Winning the Benefits of Summer and Autumn Tea: Post-harvest Spring Tea Management

In January this year, our province experienced rare cold, rain, snow, and freezing weather, which had a severe impact on the production of spring famous tea. To minimize economic losses for tea farmers and improve the quality of summer and autumn teas, the following technical measures are recommended: After the spring tea harvest, timely pruning is essential. The pruning should be done to a depth of about 3 cm, helping to maintain an even canopy layer and promote new growth. Fertilization should follow the spring tea harvest. Nitrogen-based fertilizers such as urea and ammonium bicarbonate are recommended, with approximately 4 kg of pure nitrogen applied per 100 kg of fresh leaves. Fertilization should occur immediately after the spring tea harvest, again in mid-June when summer tea is picked, and a third time in late September. During dry periods, root absorption is limited due to moisture stress, making foliar feeding more effective. Foliar sprays should be applied early in the morning or during cloudy or evening hours, ensuring both sides of the leaves are sprayed. The backside of the leaves has five times greater absorption capacity than the front, so extra attention should be given there. A solution of 0.3% to 0.5% urea and 0.1% to 0.2% zinc sulfate is ideal. Irrigation is crucial during the hot and dry summer and autumn seasons. When soil moisture drops below 10% of field capacity, watering should begin immediately. Mulching helps retain soil moisture, enrich the soil, and suppress weeds. A mulch layer of about 10 cm is recommended for best results. Soil loosening and weeding should be carried out after the spring tea season. Compacted soil from foot traffic hinders root activity, while weeds compete for water, nutrients, and space. Ploughing to a depth of 10–15 cm improves aeration and reduces water evaporation, enhancing drought resistance. For summer and autumn tea picking, it's important to prioritize high-quality shoots first. Early harvesting should begin when 15% of the standard buds are available. Small leaves should be picked promptly, as high temperatures can cause rapid aging. Frequent, timely harvesting increases tenderness and quality. After high-quality tea is harvested, ordinary tea should also be picked, using machines where possible to maximize efficiency. Finally, it's essential to monitor and manage pests such as the small green leafhopper, tea caterpillar, tea stem borer, and diseases like leaf blight, anthracnose, and bud blight during the summer and autumn seasons.

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