Affected by the moderate-intensity El Niño event and superimposed on the background of global warming, periodic cold air is active, precipitation is excessive, and the risk of composite meteorological disasters is increasing. In the face of complex climate changes, tea garden machine can help tea gardens survive the winter safely. So how to manage tea gardens in winter?
1. Prepare for disasters
1. Prevent freezing damage
Pay close attention to the weather forecast. Before the cold wave arrives, implement anti-freeze measures such as covering the tea gardens with grass and covering the tea tree canopy surfaces with straw curtains and films. After the cold wave ends, remove the coverings from the tea tree canopy surfaces in time. Before the cold wave arrives, spray amino acid foliar fertilizers. , add potassium dihydrogen phosphate to improve the resistance of tea trees; when the cold wave arrives, continuous sprinkler irrigation can be used to reduce freezing damage. After the temperature returns to normal, use a tea pruner to prune the frozen tea trees in a timely manner. The pruning principle should be light rather than heavy. For tea gardens with mild frost damage, cut off frozen branches and leaves and try to maintain the picking surface. For tea gardens with severe frost damage, carry out deep pruning and cut off frozen branches.
2. Prevent spring drought
For tea gardens with irrigation conditions, irrigation facilities and equipment should be repaired in a timely manner, water reservoirs should be cleaned, and water should be actively stored for later use. In particular, crop straw is used to cover the rows of young tea gardens to protect moisture. Use a rotary tiller to plow the soil promptly after rainfall to facilitate water storage and moisture conservation.
2. Strengthen nutrition management
1. Apply more organic fertilizers
Applying organic fertilizer in autumn and winter will help promote the growth of tea trees and improve the quality of fresh leaves. According to the soil fertility condition and the nutrient content of organic fertilizer, furrow application is adopted along the tea tree drip line, generally about 200 kg/acre.
2. Spray foliar fertilizer
In order to enhance the nutrient storage of tea trees and improve the yield and quality of spring tea, nutritious foliar fertilizers such as amino acid foliar fertilizers can be sprayed once in December, and can be sprayed by drones.
3. Make preparations before spring tea production
1. Maintenance of production machinery
Repair and maintain tea harvesters, processing and field work equipment to ensure normal use; check for leaks and fill deficiencies, and purchase, install and debug shortage equipment in a timely manner.
2. Clean up the production site
Clean irrigation and drainage ditches in tea gardens, renovate tea garden roads, and clean processing plants and the surrounding environment.
3. Prepare sufficient production materials
Purchase production materials in advance and prepare fertilizers, fuel, Insects Trap board, etc. needed for spring tea production.
4. Carry out production training
Use the winter slack period to organize training for tea picking and processing personnel to improve picking and processing skills and safety production awareness.