Planting trees in spring is not suitable for earth piles
After planting a tree, a pile of mounds around the trunk can protect against wind, moisture, and freezing. It has a certain effect on improving the survival rate. However, this practice is only suitable for planting trees in the fall. If the trees are planted in the spring, they will not only be useless. On the contrary, it is possible to reduce the survival rate, and some will appear "stuck" after survival. The main factors affecting the survival of the seedlings are soil moisture and temperature. It is not difficult to do watering first after planting the tree. The most important factor is whether the temperature is suitable for the growth of the seedlings. Because the ground temperature is higher than the temperature in the autumn, the soil temperature is higher than that of the soil. After the mound is piled on, the heat loss of the soil is delayed, which is conducive to the formation of new roots. At the same time, the soil can also prevent the drawing of the winter; the temperature is high in spring, the ground temperature is low, and the heat of the soil comes from the sun. Radiant heat, the temperature of the soil descends from the ground surface to the ground. In general, the temperature of the soil below 0-10 cm is 2°C-4°C, and the suitable temperature for the growth of the fruit tree root is 15°C-25°C. The tree planting in the spring is suitable for the growing period from the ground temperature to the root system. Start at the lower temperature limit. Therefore, planting trees in the spring to increase the ground temperature is of great significance for improving the survival rate and promoting the growth of seedlings. Some people do not understand this principle. After planting trees in the spring, they also cultivate a large mound. The reason is that the wind is too big to be afraid of scraping trees. It is virtually equal to a lot of plants. The entire root system is completely in a state of low temperature and can not grow. , Become a "freezing seedling." The correct method is: in the windy area, after the spring planting of trees, a bamboo pole is tied beside the trunk and the tree disk is covered with a mulch. In addition, the earth piles cultivated in the fall of trees should also be promptly opened after thawing in early spring to create a suitable growth environment for seedlings, which can promote the growth of seedlings.