夏季大树科学防冻处理建议(国外英文资料).docVIP

冬季大树科学防冻处理建议(国外英文资料) Antifreezing treatment of big tree in winter In the cold winter season, it is a severe test for seedlings, newly planted seedlings and garden plants which are not hardy, and cold maintenance is particularly important. If the cold work is well done, can greatly improve the survival rate of seedlings, but also can affect the quality of growth and flowering of the following year. Seedlings: at night to cover the ventilation during the day In the seedlings increased covering, such as the net, if possible, suggest to add a layer of thin film on the net, the temperature increase can also play the role of wind. But remember that the cover should be covered at night, opened during the day, so that the seedlings receive sunlight, ventilation and ventilation. Tree: tree transplanting, especially antifreeze For the tall trees in the garden, but in its trunk and branch winding rope, if the weather is too cold to some of the film strip winding rope outside. In Guangzhou, winter weather will not reach zero degrees Celsius, the general seedlings do not need to do this work, but for newly transplanted trees, should be strengthened antifreeze. Warm prompt: the simplest cold proof method is proper watering. Because the specific heat of water is greater than that of soil, it can absorb more heat during the day and raise ground temperature. At the same time, watering can prevent seedlings from freezing damage due to water shortage. In addition, the two methods can also be used in organic fertilizer, application of decayed trees around, it can improve the soil temperature, while providing sufficient nutrient for seedlings, seedlings overwintering protection. Water, cold, bogey cold bogey Very cold winter, most of the plants into hibernation, watering should not be too much, in order to keep the normal growth of plants. Water in winter is usually 5~7 days, once sufficient for watering, but for happy wet plants at most 3~4 days, it is necessary to pour enough water.