Cold wave

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…

Impacted by a moderate-strength El Niño event, and superimposed on the backdrop of global warming, the global average temperature in 2023 may break the record for the warmest year set in 2016. It is expected that temperatures in most regions of China will be close to or higher than the long-term average this winter through to next spring, but with active cold air phases. Precipitation in southern regions is expected to be above normal, increasing the risk of compound meteorological disasters. Given these complex climate changes, timely management of tea gardens during winter can help them safely overwinter and lay a foundation for high-quality tea production and increased income for tea farmers in the coming year. So how should we manage tea gardens in winter? Follow along as we look at the winter and spring tea garden management technical guidelines developed jointly by the Department of Plant Industry Management of the Ministry of Agriculture and Rural Affairs, the National Agricultural Technology Extension Service Center, and the Expert Advisory Group for Tea of the Ministry of Agriculture and Rural Affairs. 1. Disaster Prevention 1.1 Preventing Frost Damage Monitor weather forecasts closely. Before a cold wave, implement frost protection measures such as…

The tea regions of Guiyang City have been frequently impacted by extreme spring weather in recent years. According to meteorological forecasts, the city is expected to experience another cold wave soon. To cope with the upcoming temperature drops, thunderstorms, and late spring cold snaps, this document, "Preventive and Remedial Measures for Low-Temperature Freeze Damage (Late Spring Cold Snap) in Guiyang and Guian Tea Gardens," has been specially formulated for your reference. I. Preventive Measures (1) Pay Attention to Cold Wave Forecasts Strengthen forecasting and early warning systems for disastrous weather conditions, promptly issue cold wave information, and prepare in advance. After a cold wave forecast is released, tea gardens that are already open should mobilize manpower to harvest as much as possible to minimize losses from frost damage. (2) Cover Tea Gardens for Frost Protection Straw, bamboo leaves, and rice husks can be spread between rows of tea plants to keep them warm, ideally at a thickness of about 10 centimeters, which can generally increase temperatures by 1-2°C. In tea gardens on windward slopes prone to frost damage, cover the canopy with straw, weeds, or shade nets, not too tightly so that the tea plants are still visible. This will…

Affecting a moderate-strength El Niño event and superimposed on the backdrop of global warming, the average global temperature in 2023 may break the record for the warmest year set in 2016. It is expected that most regions in China will have temperatures similar to or higher than the long-term average this winter through next spring, but with active cold air phases. Precipitation in southern regions will be above normal, increasing the risk of compound meteorological disasters. In response to complex climate changes, timely management of tea gardens during winter can help ensure their safe overwintering and lay the groundwork for high-quality and high-yield tea production and increased income for tea farmers in the coming year. So how can we properly manage tea gardens in winter? Follow along as we explore the winter-spring tea garden management guidelines developed by the Department of Plant Industry Management of the Ministry of Agriculture and Rural Affairs, in collaboration with the National Agricultural Technology Extension Service Center and the Expert Advisory Group on Tea of the Ministry of Agriculture and Rural Affairs. 1. Disaster Prevention 1.1 Freeze Prevention Closely monitor weather forecasts and implement protective measures such as mulching between rows and covering the canopy…

During the spring warming period, cold air often invades, causing a significant drop in temperature. This weather, characterized by warmth before and cold after, is known as late spring cold. Late spring cold generally refers to prolonged periods of low temperatures and overcast rainy weather after the Vernal Equinox, specifically when the temperatures in late March or early April are lower than average. Depending on the timing, it can be further divided into "Vernal Equinox Cold" and "Qingming Cold." "Vernal Equinox Cold" occurs when the daily average temperature remains below 10°C for five days or more, with less than three hours of sunshine, from March 15 to March 27. "Qingming Cold" refers to low-temperature and rainy weather from March 28 to April 10. The Harm of Late Spring Cold to Tea Plants: In addition to variety, soil, fertilization, management, and processing skills, the production of high-quality tea also depends on climatic conditions. The relationship between tea production and temperature, sunlight, and rainfall is close. When the daily average temperature remains above 10°C for three consecutive days, tea buds begin to sprout and unfurl; once the temperature stabilizes above 10°C, the growth of buds and leaves accelerates, and new shoots emerge.…