Weed control

Nursery management significantly influences the survival and transplanting rates of tea seedlings. Different ecological and physiological factors at various stages of development require distinct management approaches, depending on when the cuttings were taken. I. Development Cycle of Tea Seedlings When using short-shoot cuttings, the process from planting to developing a standard-compliant tea seedling can be divided into two phases: the pre-plant stage where the cutting is establishing itself, and the phase where a complete plant develops into a viable seedling. The survival rate during the first phase is critical in propagation techniques. Summer and early autumn cuttings have longer growth cycles and larger growth volumes, which often result in a significant number of weaker plants due to competition for nutrients and space, particularly in the second year of growth. To improve transplanting rates and seedling quality, the second phase is typically managed in two different periods: one when the seedling is less than 20 cm tall, focusing on promoting vigorous growth, and another once it surpasses 20 cm, implementing measures to control stronger plants while stimulating weaker ones. II. Element Management Nursery element management encompasses water, light, temperature, fertilization, pest and weed control, and plant regulation. Each of these elements…

Summer and autumn are critical periods for tea garden management. Strengthening summer and autumn tea garden production management is the foundation for ensuring high-quality and high-yield summer and autumn tea and the following spring tea. The Planting Industry Management Department of the Ministry of Agriculture and Rural Affairs, together with the National Agricultural Technology Extension Service Center, the Expert Advisory Group for Tea of the Ministry of Agriculture and Rural Affairs, and the National Tea Industry Technology System, have developed the following technical guidance on summer and autumn tea garden production management and disaster prevention and mitigation. Strengthening Tea Garden Production Management (1) Tea Plant Pruning - For year-round harvesting tea gardens, promptly perform the initial light pruning after spring tea harvesting, cutting off the top 5-10 cm of shoots from the canopy. During summer tea harvesting, it is advisable to allow some growth retention and use the leaf-retention method or tip-picking method to maintain an appropriate leaf layer thickness. Harvesting should be appropriately stopped earlier in autumn to avoid affecting the yield and quality of the following year's spring tea. To cultivate a good picking surface, the second light pruning should be completed before mid-July, with the pruning height…

Tea gardens are characterized by a diverse range of weeds, complex weed communities, and strong stability. According to incomplete surveys and statistics, there are as many as 202 common weed species found in domestic tea gardens, belonging to 49 families and 163 genera. Weeds can impact the growth of tea plants, causing symptoms such as stunted growth, yellowing leaves, leaf drop, and delayed development. They may also carry diseases or pests that affect tea plants directly or act as intermediate hosts, indirectly impacting the growth and development of tea plants. "Grass to suppress grass" is an integral part of the green and efficient prevention and control technology system for Guizhou tea gardens, embodying the concept of "ecology at its root, agriculture at its core, and biological control first." Planting white clover in tea gardens can effectively suppress weeds and resist tea plant diseases and pests. Below are key technical points for reference. White clover in tea gardens and pollinating insects - bees Intercropping white clover in tea gardens Effective "grass to suppress grass" In recent years, research teams from Guizhou University, the Provincial Plant Protection and Inspection Station, the Provincial Academy of Agricultural Sciences, and the Provincial Soil and Fertilizer…