Green manure

According to weather forecasts, from February 1st to 6th, Hubei Province will experience the most powerful cold wave of the winter, with low temperatures, rain, snow, and ice. The average temperature across the province is expected to drop by 6°C to 10°C. This severe freezing weather will pose a significant threat to the normal growth of tea plants, particularly young ones. Precautionary measures should be taken to minimize the impact of extreme freezing conditions on tea fields and ensure the production of spring tea next year. Influence of Low-Temperature Freezing Weather on Tea Production Severe freezing weather poses a significant threat to the normal growth of tea plants, especially young ones, potentially leading to reduced yields, decreased quality, and even plant death. Measures to Prevent Frost Damage in Tea Plants 1. Covering for Frost Protection For mature tea plants in high-altitude areas, non-woven fabrics, ground films, or shade nets can be used to directly cover the canopy, with better results achieved by erecting a shelter 10cm to 20cm above the canopy. Covering with rice straw or crop stalks provides even better protection against extreme cold. Covering materials should be removed when temperatures rise. 2. Spraying Anti-Freeze Agents For mature tea…

Green manure is a clean organic fertilizer free from heavy metals, antibiotics, hormones, and other residues. It is also an effective measure to reduce the application of chemical fertilizers and improve soil fertility. Intercropping winter green manure in tea gardens is an effective way to maintain and improve soil fertility, utilizing garden resources to nourish the garden and trees. This practice can maximize resource utilization, as green manure covering the soil surface reduces soil erosion by rainwater, absorbs and activates soil nutrients, and prevents nutrient loss. Since there is less competition between winter green manure and tea plants, it has good prospects for wider application in tea gardens. Based on years of experimental research, this article introduces suitable varieties of winter green manure for tea gardens and key points in their cultivation techniques. Suitable Varieties of Winter Green Manure for Tea Gardens and Their Characteristics Tea garden soils are typically acidic and rich in aluminum, so the green manure crops grown must be acid and aluminum tolerant. The main criteria for selecting suitable green manure crops are biomass yield and quality, which are important indicators of a variety's stress tolerance and productivity. Nitrogen content is one of the most critical…

Guidelines for High-Temperature Drought Early Warning and Disaster Mitigation Measures in Tea Gardens Hunan Provincial Tea Industry Technology System Li Saijun & Li Wei July 25, 2024 Since early July, our province has been experiencing persistent high temperatures and droughts, with the drought rapidly worsening in most areas, severely impacting normal tea garden production. On July 25, the Hunan Meteorological Observatory issued the first red alert for extreme heat of the summer. In response to this extreme high-temperature and drought climate disaster, the Hunan Provincial Tea Industry Technology System has timely provided technical guidance, proposing specific measures for pre-disaster prevention and protection, as well as post-disaster recovery work in tea gardens. I. Pre-Disaster Prevention and Protection Measures (1) Interspace Covering ① Lay an appropriate amount of straw, fallen leaves, etc., in the gaps between tea plants to cover the soil surface at a thickness of 5-10 cm. This layer helps protect the soil, reducing water evaporation and aiding in the retention of nutrients in the soil. ② Intercropping green manure can effectively provide shade, reduce temperatures, and improve the microclimate within the tea garden, thus effectively preventing damage to tea plants from high temperatures and intense sunlight. (2) Scientific Shading…

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…