The winter temperature is low. Fruit trees, especially young fruit trees, are susceptible to frost damage because of low lignification, weak plants, and poor stress resistance. Measures should be taken to protect safety during the winter. 1. Before the cover soil is frozen, covering crop stalks, leaves, etc. between the rows of fruit trees can increase the ground temperature. It can be guaranteed. For a few 1 to 2 years young saplings. It is best to use film antifreeze. In saplings orchards, a curved bracket is inserted every 100 meters or so and a plastic film is placed on it. Surrounded with soil compaction pressure. When the temperature in Hunchun is picking up, the two ends of the film will be lifted to “discharge the airâ€; after the young trees gradually adapt to the external environment, they will uncover all the films. 2. Soil cultivating and weeding before winter. On the roots of fruit trees, cultivate soil 15-2O cm to protect roots and reduce freezing damage. 3. The main trunk and main branch of the result tree are generally brushed with a white protective agent before being painted and frozen, which can enhance the ability to reflect sunlight. To make the temperature difference between day and night more stable, to avoid "burning night freeze." It can also control overwintering pests. The white protective agent can be prepared by the ratio of sulfur powder 1 kg, quicklime 1O kg, and water 4O kg. Can also use salt 0.5 kg, quicklime 5 kg. Respectively with appropriate amount of hydration. After mixing and mixing. Then add 0.5 kg lime sulfur mixture and 0.1 kg vegetable oil. 4. Wrap the stem and main technique of the fruit tree with straw rope before wrapping. When weeding grass. The top of the grass should be tightly tied to the trunk with a rope. The underside should be removed. Do not tie the entire grass tightly to prevent the trunk from freezing. Antifreeze damage. 5. Before the winter irrigation and freezing, dig trenches between the rows of fruit trees, and then flood the water along the ditch. With ground water-free waterlogging as the limit, so that the water storage temperature, so that during the cold wave to maintain a relatively stable ground temperature, thereby reducing cooling damage. 6. Before the onset of smoke fumes, use the weeds, sawdust, etc. at the edge of the limelight on the orchard to ignite at about 12:00 midnight. Usually 3-4 burning spots per acre orchard. To make the smoke cover the entire garden, the temperature can be increased by 3-4 °C. 7. Pruning in late autumn or early winter season, on deciduous fruit trees, especially l-2 years old deciduous fruit trees, can be properly pruned and artificial deciduous, in order to reduce consumption and increase accumulation, improve cold resistance. The pests and branches that have been cut off must be burned centrally to prevent further transmission. 8. Set a small area of ​​young wind orchard orchard, available sorghum, corn stalks every 2-3 rows of tree seedlings set up a wind barrier. For large areas of forest orchards, windbreaks should be constructed.
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