Greening seedling planting technology key points
Today's experience sharing: Greening seedling planting technology key points and the green plant maintenance experience of seedling planting plan and measures, the following editor will answer for you in detail
With the improvement of people's living standards, the requirements for the quality of garden landscapes are also increasing. Both variety and form are becoming more and more abundant. However, due to the increase in off-season planting phenomena and the impact of geological environmental changes on seedling planting, the technical requirements for their survival are also increasing. Therefore, it is necessary to strengthen seedling technical measures and post-maintenance work to improve survival rates.
The survival of绿化幼苗 during the sowing season is influenced by various factors, including climate environment, soil conditions, types of绿化幼苗, sowing season, sowing methods, and maintenance work. According to the laws of plant growth, it is usually better to plant seedlings in spring or autumn. If sowing in summer, it is necessary to strengthen shading and moisturizing measures, and in winter, straw ropes or films should be used for warmth. The vitality of seedlings is usually weak, so please choose a suitable growing season (usually spring) to effectively improve survival rates.
The selection criteria for green seedlings in garden construction: suitable for local climate and soil conditions; have certain ornamental and aesthetic values; easy to plant, high survival rate, less prone to diseases and pests, easy to manage. Local native species are usually preferred. The main native species in Chu City are catalpa, beef fat, trigonometric maple, Chinese parasol, elm, ligustrum lucidum, Chinese and Indian emu. In addition, it is also suitable for local climate and soil. Secondly, some evergreen tree species with long-term successful, high survival rates, and healthy growth, such as Lu tree, camphor tree, magnolia, catalpa, crape myrtle, sweet wood, quince, paulownia, ginkgo, beech, etc.
Usually, when digging seedlings, ensure an appropriate-sized soil ball. The diameter of the soil ball is usually about 8 times the diameter of the seedling or ground diameter. At the same time, use straw balls to stabilize the soil ball to keep the soil ball from getting damp, prevent it from loosening, and damaging the rootstock.
Under the premise of maintaining a complete canopy, appropriately refine the branches and cut some leaves. The remaining branches and leaves should be reasonable to maintain the shape and balance of the tree. When pruning branches, remove all damaged branches, broken branches, dead branches, and diseased branches. The cuts should be smooth. When the diameter of the pruned branch exceeds 2 centimeters, the cut should be cut smoothly and coated with a preservative. During transportation, the seedlings should be kept moist and covered, and if the time is too long, the supply of nutrient solution must be increased to maintain the vitality of the green seedlings. The roots should be moisturized and maintained in the morning and evening to prevent the seedlings from drying out. Usually, they can be wrapped in damp straw bags to keep the moisture of the seedlings.
Usually, scientific adjustment methods are adopted based on different topography and terrain to improve the survival rate of green seedlings.
Firstly, in some low-lying areas in the north with poor drainage and perennial dark ground, the groundwater level is relatively high, and the surrounding terrain is conducive to drainage. To prevent long-term flooding of seedlings, it is necessary to dig reasonable drainage ditches. The drainage ditches should be perpendicular to each other in all directions, consistent with the direction of the road.
Secondly, if the local terrain is low-lying and there is too much water on the ground, and the surrounding terrain conditions are not conducive to drainage, artificial soil stacking can be used to form a sloping seedling planting area.
Thirdly, in areas with severe groundwater, after digging the pit, there is a lot of accumulated water, and the terrain has slope conditions that can drain on their own, then the drainage function can be enhanced by burying drainage pipes underground to reduce the accumulated water in the planting pit.
The key points of green seedling planting technology
Fourthly, although drainage methods such as drainage pipes and ditches are used, for a small amount of water accumulated in the planting pit that cannot be completely drained, dig the tree hole into the shape of the bottom of the pot and the bottom of the pit. Laying a 15 cm thick sand and gravel permeable layer can reduce excessive water accumulation and immerse the roots of the seedlings, causing rot and affecting the survival rate, while also helping the seedlings to absorb water better.
Before sowing, the soil quality should be tested in advance. If the soil quality is not qualified, it should be improved and replaced. Improvement measures mainly involve adding a small amount of coarse sand or peat soil to improve soil permeability and adding organic fertilizer to improve soil fertility conditions. The alternative measure is to first dig up all the soil within the planting area to a depth of more than 1 meter, and then backfill the soil with better soil conditions and fertility.
Before planting trees or large shrubs, dig the planting holes with a excavator first, and then manually dig small planting holes. The planting holes are dug vertically with the same diameter at the top and bottom, the diameter is 40 centimeters higher than the diameter of the soil ball, and the depth is 20-40 centimeters higher than the height of the soil ball. Some seedlings need to be treated accordingly before planting, such as pruning long main roots and lateral roots to ensure better growth of the seedlings; generally, some seedlings are cut to reduce moisture evaporation.
During planting, the soil ball packaging should be completely removed. When backfilling the soil, it must be layered and compacted. It is necessary to water the生根 water in time so that it can be watered without flowing or accumulating. To prevent wind and human摇摆 and ensure survival rate, the seedlings should be fixed and supported after planting. When fixing the支架, the trunk or tree center of gravity of the seedling must be vertical to the ground, and the支架 must be padded with a buffer layer and securely tied.
Post-management measures:
① Watering. Green plants should be watered once every seven days, and every three days in summer. In summer, watering should be done in the morning and evening, and in winter, at noon.
② Pruning. Greening and pruning should be suitable for trees, moderate, timely, moved according to local conditions, and decided based on trees. Pruning trees and flowering shrubs should maintain the natural shape of the trees and strictly prohibit forced cutting.
③ Whitewashing. From late October to mid-November, whitewash trees and flowering shrubs to prevent freezing and prevent diseases and pests, with a ratio of water: hydrated lime: sulfur: salt of 40:10:1:0.5. White trees are 1.2-1.6 meters high, and flowering shrubs are 1 meter or less below the branching point. At the same time, the coating height of the road sections and areas remains the same.