fir pileMaintenance of greening projects is a long-term and meticulous work. A good maintenance project can not only improve the survival rate of seedlings and reduce project costs, but also establish a company brand and enhance the company's image and reputation. To do a good job in the maintenance of greening projects, we must start from the following points:

One, water Maintenance in the true sense does not start when the project is completed, but starts when the first tree is poured with root water. Replenishing water:When the weather is dry and the seedlings lack water, the seedlings need to be hydrated. There are two types of water replenishment:When the water shortage of seedlings is relatively minor, you only need to spray the trunk and crown of the tree.;When the seedlings are seriously short of water and the soil in the tree pond is compacted, it is necessary to loosen the soil in the tree pond first, and then replenish water. The amount of water should be appropriately larger. When replenishing water in summer, be careful to avoid high temperature periods. How to determine whether seedlings need water:One is that the soil on the inner surface of the tree pond is compacted, and 2 is that the leaves are lifeless, drooping, and curled.

2, fat Fertilization is helpful to restore the growth potential. In the early stage of seedling planting, the root system has low fertilizer absorption capacity. It is advisable to use extra-root top dressing, using urea, ammonium sulfate, potassium dihydrogen phosphate and other quick-acting fertilizers with a concentration of0.5 percent-1 percentFertilizer solution should be sprayed on the leaves in the morning and evening or on cloudy days, and should be sprayed again on rainy days. After the root system has sprouted, soil fertilization can be carried out. It is required to apply thin fertilizer frequently to prevent root damage.

3. Pests and diseases Prevention and control of pests and diseases should be based on prevention, supplemented by comprehensive prevention and control. have to be aware of is:When using the potion, you should add a little more weight to the ratio specified in the product description, and replace it regularly to prevent pests and diseases from developing resistance to the potion.

4, support After the seedlings are planted, in order to prevent the seedlings from lodging or shaking at the roots, the seedlings should be supported. The types of supports are as follows::I-shaped bracing, 3-angle bracing, tic-shaped bracing. If it is a piece of seedlings, such as a bamboo forest, mesh bracing can be used. The supporting materials include fir stakes, bamboo, iron wire, etc. The support should be solid and powerful, such as using iron wire to pull 3 When corner bracing, the wire should be tight and the pile should be tilted45driven into the ground.

5, pruning(Thinning buds)

　　①arbor pruning For coniferous trees, the branches hanging down from the base should be cut off. As the trees grow, the branch points can be gradually increased as needed, and the main tips should be protected from growing upright. Ginkgo pruning can only be done by thinning the branches, not cutting them short, and the whorled branches can be thinned out in stages.

　　②Shrub pruning Shrubs with current-year branches and flowers such as:For roses, pearl plums, crape myrtles, etc., the remaining flowers should be cut off in time after they bloom to encourage them to bloom again. Shrubs with branches and flowers growing every other year, such as:Beta peach, elm-leaf plum, forsythia, etc., flowers are lagging behind10arrive15The branches that have already bloomed will be shortened or cut back again, and the dense branches will be thinned out to promote the growth of strong new branches in the coming year.

6. Protection from cold Strengthen fertilizer and water management, especially water for greening and antifreeze water should be watered in a timely manner and thoroughly. For tree species with poor cold resistance, such as camphor and magnolia, cold-proof measures can be taken by winding straw rope around the trunk and adding thin film, mulch, etc. For flowering shrubs with low plant shape and poor cold resistance, such as roses, mounds of soil should be built at the base of the roots to protect them from the cold.