First, fine planting.
1, standard soil preparation Due to the influence of people stepping on the cart and rolling, the soil permeability in the planting area is generally poor, and the soil layer lacks humus and nutrients. Based on this, we must do a good job of land preparation before planting to create ideal soil conditions for seedling growth, otherwise the seedlings will often grow poorly after survival. Therefore, the following work should be done well: (1) Strictly follow the land preparation methods and specifications stipulated in the technical regulations; Raw soil and cooked soil are stacked separately, and stones, gravel, grass roots and other sundries are picked out; When the soil quality is poor, improvement measures such as sand mixing or complete soil replacement must be taken.
2, protect seedlings, timely planting in seedling handling, distribution, into the hole and other links must be careful, so as to avoid loose soil balls, and should prevent the binding side branches from cracking and the top of the central trunk from being damaged. At the same time, various measures should be taken (low temperature treatment, use of sunshade net, application of transpiration inhibitor, etc.). ) to reduce the water loss of seedlings. Finally, we should adhere to the principle of timely sowing. If it is planted in unsuitable season, the diameter of soil ball should be increased to effectively protect seedlings and increase the number of watering after planting.
3, serious planting, strengthen management in the process of planting, should ensure that the seedlings stand upright and stable, at the same time, fill the soil, do a good job of tree tray, timely and adequate watering, large-scale seedlings should also be supported. After that, you have to pour water twice. If the planting time is autumn, after pouring the frozen water, the seedlings should be piled up into a 30 cm high mound on the dry foundation, which is beneficial to wind, moisture and root protection. Finally, the seedlings with the same specifications should be replanted in time.
Second, the maintenance management
1, intertillage weeding
In order to improve soil ventilation, reduce the consumption of water and nutrients, reduce the source of diseases and pests, and ensure the cleanliness and beauty of green space, loosen the soil and weed it two or three times a year. The grass under the forest should be adapted to local conditions, and some need not be removed. Summer intertillage can be combined with weeding.
2. Rational fertilization
In order to enhance the vitality of trees, improve their resistance and ornamental value, topdressing must be done once or twice a year during the growing period. Topdressing can be combined with precipitation, otherwise irrigation should be done in time after topdressing to improve fertilizer efficiency.
3. Humidity control
In the growing season, mainly drought-resistant irrigation; At the same time, because Pinus bungeana is not resistant to water and humidity, attention should be paid to the timely treatment of stagnant water in low-lying areas after heavy rainfall or continuous rainfall.
4, plastic pruning
Pinus bungeana is not suitable for pruning, so natural pruning is often used, that is, according to its natural growth characteristics, only the crown shape is adjusted and improved, and the over-dense branches, drooping branches, injured branches, dead branches and weak branches in the crown are pruned to ensure good ventilation and light transmission of the tree.
5, pest control
Pinus bungeana is a resistant tree species, and there are generally few pests and diseases, but soil and fertilizer management should be strengthened, supplemented by reasonable pruning, so as to enhance tree vigor and improve resistance.
6. Other aspects
Prevent people, livestock, machinery and vehicles from damaging trees, and support and straighten seedlings damaged by vehicles in time; Spray water for dust removal; Straighten branches in time after heavy snow, shake off snow or take other effective measures to prevent snow damage; After the heavy wind and rain, the skewed seedlings should be righted in time, and appropriate amount of soil should be cultivated at the base of the trunk of the seedlings, and the branches broken by the wind should be trimmed in time.