To plant paulownia in autumn

People are generally used to plant Paulownia in the spring from March to March. In fact, if you plant in the late autumn and early winter, not only the survival rate is high, but also in the spring of next year can be about half a month ahead of time. • Paulownia is transplanted in the middle or late October or early November. Since the leaves are not completely dried, photosynthetic nutrients can be used to transport nutrients to the roots for storage, so that the wounded roots heal quickly. Even if plants are planted in late mid-November, although the trees are deciduous, the soil temperature is beneficial to root life activities. When the sap begins to flow in the spring of the following year, the old and new roots have the ability to absorb nutrients. Therefore, Paulownia planted in autumn grew faster. • Planting Paulownia in the fall requires mastering the following four technical steps: 1. To dig a pit. The top of the tree pit is 1 meter high and 80cm deep. The depth of planting is preferably 2 to 4 cm above the junction between the stem and the base of the trunk. Second, to apply basic fertilizer. For each planting pit, 15 to 25 kilograms of decomposed manure and 0 to 5 kilograms of superphosphate are used to mix well with the pit soil, and trees are planted after being applied. Practice has proved that applying phosphate fertilizer has a great effect on reducing or avoiding the occurrence of witches' broom. Third, we must plant big seedlings. Paulownia seedlings are preferred for the first year of life. The height of the seedlings is more than 4 meters. The lower part of the seedlings is thicker than the stalk shank, and more lateral roots are required. When growing, try to do as little damage as possible. After planting, the earth will be piled on the ground above the roots, which will not only keep warm and moisturize but also prevent the strong wind from shaking the trunk. Fourth, to white or sapling paulownia seedlings planted trunk, according to 50 kg of water, 5 kg of fresh lime, 0.5 kg of salt into the proportion of whitening agent used to brush the trunk of paulownia trunk, is conducive to disinfection, sterilization , cold weather; also can use the method of Sokcho, not only play the same role of cold, but also to prevent people, animals hit the bark, to ensure survival. China Agricultural Network Editor