Sulfur

With the drop in temperature, the growth of the above-ground parts of tea trees slows down gradually while that of the underground parts remains relatively active. Applying base fertilizer in autumn can improve the efficiency of fertilizer use by the tea trees and contribute to enhancing the quality and yield of spring tea the following year. Therefore, it is essential to apply base fertilizers scientifically to tea trees in autumn. I. Principles of Fertilization 1. Organic and chemical fertilizers should be used in combination, with organic fertilizers replacing part of the chemical fertilizers, and base fertilizers should be applied deeply; 2. Maintain a suitable nutrient ratio. Based on soil fertility conditions and tea yield, determine the nitrogen fertilizer amount and enhance the combined application of phosphorus, potassium, and magnesium fertilizers, paying attention to the supplementation of sulfur, boron, and other nutrients; 3. For tea gardens with severely acidified soils (soil pH < 4), measures such as applying lime, soil conditioners, or increasing the application of mature livestock manure can be taken to gradually improve the soil; 4. Combine scientific fertilization with green cultivation techniques that increase yield and efficiency. II. Methods of Fertilization 1. Timing of base fertilizer application: It…

Winter Tea Garden Sealing Is Timely for Tea Trees With the drop in temperature, it's time to perform winter sealing of tea gardens. Which tea gardens should undergo winter sealing? Tea gardens that have experienced severe infestations of pests such as tea orange spider mites, scale insects (including Unaspis citri, Unaspis stevensi, and Unaspis yanonensis), black scale insects, and tea anthracnose can benefit from winter sealing. This helps control pest and disease outbreaks in the following year, reducing the number of pesticide applications and ensuring the safety of tea quality. Sealing Time: The most suitable period is when the daily average temperature is between 10-15°C. If the temperature is too high, there is a risk of causing leaf fall due to phytotoxicity. If it’s too low, the expected results may not be achieved. Sealing Agent: We recommend using lime-sulfur solution. A dilution of 45% crystalline lime-sulfur solution at 150-200 times its concentration. Precautions: Thoroughly spray the entire tree, including both sides of the leaves, branches, and the base of the bushes, akin to giving the tea trees a complete cleansing and disinfection. Special Reminder: Lime-sulfur solution is strongly alkaline and must not be mixed with other pesticides. In late October…

On August 5th, in the Sanfangping Community of Yuyangguan Town, Hubei Caihua Tea Industry Co., Ltd. distributed 9,600 bags of organic fertilizer, 40,000 yellow sticky boards, and 3,200 bottles of lime-sulfur mixture free of charge to 228 local tea farmers. Previously, technical personnel from the County Tea Development Center provided training for local farmers on practical techniques such as pest control and organic farming to improve their scientific management skills. Caihua Tea Industry, one of the key players in the construction of organic, eco-friendly low-carbon tea and ancient wild tea, plans to promote techniques that reduce chemical inputs and implement green prevention measures against pests and diseases in tea gardens. This will enable the creation of a 3,100-mu (approximately 206 hectares) eco-friendly low-carbon tea base. Additionally, they will develop a demonstration base for the protection of ancient tea trees. According to the 2024 Five Peak Consolidation Plan for Ten Thousand Mu Organic Tea, Ancient Wild Tea Bases, and Eco-Friendly Low-Carbon Tea Bases, this year our county aims to build an additional 10,000 mu (approximately 667 hectares) of eco-friendly low-carbon tea bases and 9,800 mu (approximately 653 hectares) of ancient wild tea bases, building upon the existing ten thousand mu organic…

The winter protection and management of tea gardens is a key focus of tea garden management, critical for ensuring the yield, quality, and profitability of spring tea in the following year. To guide this year's winter protection and management of tea gardens, the Haiqing Town has developed technical guidance for winter protection and management of tea gardens in Qingdao Haiqing. I. New (Renewed) Tea Gardens (1) Select Cold-Resistant Varieties. Suitable cold-resistant varieties for planting in Haiqing Town include: Fuding Dabai, Huangshan Variety, Jiukeng Variety, Longjing Changye, Zhongcha 108, Longjing 43, Maolu, Jiukeng Early, Echa No.1, Bixiang Early, Yellow Rose, Jin Xuan, Pingyang Special Early, etc. When establishing a tea garden, try to use cold-resistant varieties as much as possible. (2) Select Suitable Tea Garden Sites. Choose sites that are sheltered from wind and face the sun, with a thick layer of soil, acidic soil (pH value 4.5–6.5), and have irrigation facilities. The soil texture should be loam, sandy loam, or light clay loam. (3) Create Windbreak Forests. Plant windbreak forests around the tea gardens, along roads, by ditches, on steep slopes, at the tops of hills, and in front of prevailing winds. Common tree species include: Chinese Arborvitae, Juniperus chinensis,…

The golden autumn season sees lush tea mountains, as tea gardens enter the autumn harvest period. In the fragrant tea gardens, tea farmers are seizing good weather to pick tea leaves. As autumn gives way to winter, while busy with harvesting, it is also important to focus on winter management of tea gardens to help the tea trees comfortably "survive the winter." Due to the compounded effects of drought and the pandemic, winter management has started earlier this year, with higher technical requirements and more meticulous fertilization management. Local areas should conduct targeted pruning of tea tree canopies, fertilization management, and pest control based on the impact of drought in their respective tea gardens. They should also prepare the necessary materials for winter management. Good tea comes from good cultivation and good management. Winter management of tea gardens is a crucial technical measure for increasing the yield and quality of tea next year, reducing pest and weed damage to tea trees, and enhancing the overall efficiency of tea gardens. To implement scientific tea cultivation, one must understand the growth characteristics of tea trees. The cessation of sprouting in tea trees marks a key timepoint for winter management of tea gardens.…

Great tea is grown, but it is also well-managed. As the saying goes: "One-third planting, two-thirds management." After three seasons of growth and harvesting in spring, summer, and autumn, the tea plant has expended a great deal of nutrients, and the soil between rows becomes compacted. As winter approaches, proper garden management becomes particularly important for the quality and yield of next year's tea leaves. For this reason, the Tea Industry Development Working Group, in collaboration with Guizhou Broadcasting Station's Ecology & Rural Channel, has produced a teaching video on tea garden management during autumn and winter for reference and learning by tea companies and farmers. The video received strong support from the Guizhou Tea Research Institute and covers four parts: fertilization principles and recommendations, pruning techniques for tea plants, pest and disease control, and cold prevention measures. 1 Winter Fertilization According to the growth and development patterns of tea plants, as they enter autumn and winter, the above-ground parts will gradually stop growing and enter dormancy. However, the underground parts become increasingly active and enter the peak period of root activity throughout the year. At this time, the plant's root system significantly strengthens its absorption capacity and has a…

The Jiuban Family Farm in Shengzhou City has over 60 mu of tea gardens, with varieties including Wuniuzao, Longjing 43, Golden Bud, and Yuehuang No.1, mainly producing black tea. In 2021, they produced more than 2,000 catties of black tea, selling at an average price of 200 RMB per catty. Their products are well-received, which is mainly attributed to the following two aspects: Firstly, ecological planting. No chemical pesticides are used in the tea garden; instead, lime-sulfur mixture is applied in winter to seal the garden, and no chemical fertilizers are used, only pig manure that has been fermented is applied. Newly developed tea gardens do not use herbicides for weed control, allowing grasses and tea plants to coexist harmoniously. Pig manure is fermented in bags for 5-6 months before being applied to the soil. Secondly, a craftsman's approach to production. They have sought out masters of black tea production to improve themselves while continuously experimenting and exploring, summarizing a complete set of black tea processing techniques. They follow these established processes with dedication when making their tea. Good raw materials combined with meticulous production naturally result in high-quality products.

Main pests in autumn tea gardens and their control measures. The weather gradually cools down in September, with vigorous growth of tea plants and abundant food for pests, which is very conducive to the occurrence of pests such as mites and tea green leafhoppers. If not controlled in time, they can easily cause outbreaks that severely impact the yield and quality of next year's spring tea. The main pests occurring currently and their control measures are as follows: I. Tea Orange Spider Mite This pest is small in size, with adult and juvenile mites piercing and sucking tea plant sap. When mite numbers are low, the damage is not obvious and hard to detect. However, when mite numbers increase, the veins of affected leaves turn red, the leaves lose their green color and luster. Severe infestations result in a brown rust appearance on the underside of the leaves, withered and dried shoots and leaves, and a scorched appearance, and may even cause defoliation. Some tea gardens have experienced heavy infestations recently. Without effective control measures, mite populations will continue to rise. The following measures are recommended for control: 1. Strengthen garden management by removing weeds and fallen leaves. Timely picking…

The diverse and ever-changing scents of tea are one of the main motivators for many new tea enthusiasts to get started, and a source of enjoyment for seasoned tea connoisseurs. For example, green teas have a "roasted chestnut" or "fried bean" aroma, while black teas tend towards a "sweet fruit" or "flower honey" scent. The variety of aromas in Pu'er tea is even richer, with raw Pu'er offering lotus, orchid, and fruity scents, as well as apricot aroma, while ripe Pu'er has glutinous rice, jujube, woody notes, and more. Many of these aromas can overlap. Where do all these aromas come from? Why do so many of them only approximate rather than perfectly match the descriptions they're given? In this article, Lu Li will guide tea enthusiasts through the different layers of tea aromas and where the various types of Pu'er tea aromas originate. Sources of Pu'er Tea Aromas In earlier times, Taiwanese tea expert Deng Shihai summarized four types of Pu'er tea aromas: camphor, lotus, orchid, and green (fresh) aromas. Later, the industry continued to summarize the rules of changes in Pu'er tea aromas, adding more descriptive terms that contributed to the development of the Pu'er tea aroma system.…