The correct pruning method of Luo can refer to the following points:
First, refinement:
1, that is, cutting branches from the base. Through thinning, the stump has good ventilation and light transmission, concentrated nutrition supply and vigorous growth. Early thinning of young trees can be beneficial to normal development and growth; Thinning during plastic surgery can make the left modeling branch get sufficient nutrition and accelerate modeling; The molded stump bonsai can play a role in balancing nutrition through thinning, making it old and enduring.
2. When thinning, the first thing to do is to cut off the branches of pests and diseases and burn them immediately to prevent the spread of pests and diseases. Secondly, we should cut off the branches that hinder the appearance in time. Generally, two parallel branches that are very close to each other should be cut off, and overlapping branches and opposite branches should be cut off; Keep only one verticillate branch, and cut off all the others; The long branches, upright branches, drooping branches and anti-branches on the main branches should be cut off. Branches and cross branches should be cut off one by one. The sprouting branches of tree species with strong germination ability should be cut off as soon as possible, in addition to leaving a branch in the missing part for slowly inducing and replenishing branches, so as not to consume nutrients and affect the tree potential. The arrangement of branches in pile landscape should also obey the requirements of artistic modeling. All redundant branches that do not meet the modeling requirements should be cut off.
Second, the shortcut:
1, that is, the long branches are cut short, which stimulates the axillary buds under scissors to germinate and form strong lateral branches, thus achieving the purpose of promoting their branching and facilitating modeling.
2. In plastic surgery, after thinning the redundant branches, it is necessary to cut the remaining modeling branches short, so that the modeling branches sprout 2-3 times a year. Once sprouted and chopped, the number of branches of modeling branches will increase rapidly, and the order of each branch will be shortened without lengthening the branches. Therefore, short cutting is an effective measure to control the growth of stump bonsai and maintain its dwarfing, and it is also an important means for stump to have the shape and shape of a big tree as soon as possible.
Third, contraction and shearing:
1, that is, pruning perennial branches, which is a powerful measure to shrink big trees, and also an important means to promote the germination of new branches and restore tree vigor.
2. For pile landscape plants with good stump posture, but large crown and long main branches, it is impossible to meet the requirements of pile landscape modeling only by cutting short and thinning annual branches. Through shrinkage cutting, the big tree can be made smaller, which is beneficial to pile landscape modeling; For some tree species with strong germination ability, the cutting amount can be larger, that is, the branches and leaves can be trimmed, and only the skeleton of the stump can be retained to stimulate the germination of new branches under cutting.
cultivation techniques
transplant
It is best to transplant in March-April in spring. Small seedlings need soil, big seedlings need soil balls, and potted plants can also be used. After planting, water it and make it permeable. Keep the soil moist during the growing period. In the hot summer season, it should be maintained in the shade. Fertilize in February every year 1 time. Pay attention to the cold protection of potted plants in winter, and pots and pans can be buried in the soil to reduce watering.
integer
Podocarpus is a whorled branch. According to the trend of the trunk, cut off the disorderly branches, keep 2-3 branches in the appropriate parts, and tie the branches with metal wires to make the main branches droop slightly, so the technical strength is not strong. Prune once a year in June and July, generally with a core (usually after lignification of the branchlets).
water
Spreading half rotten pine needles with a thickness of 0.5 cm on the basin surface has the functions of retaining water, fertilizer, root protection and preventing soil hardening. When boiling water, it is dry and wet, so it is impossible to maintain Podocarpus according to the theory of "drying pine and wetting cypress". Luohansong likes water, and the soil in the basin should be kept moist at ordinary times: water it once every evening or early morning in summer, and spray foliar water again in the afternoon; When the temperature is below 25 degrees in spring and autumn, water is usually poured once every 2-3 days. In winter. In order to reduce maintenance trouble. The basin can be buried underground, the foundation can be scratched thoroughly, and then the water can be replenished appropriately according to the dry and wet conditions in the basin.
Fertilize soil or land
Podocarpus is mainly used for leaf viewing. Give priority to with appropriate amount of nitrogen fertilizer, supplemented by phosphorus and potassium fertilizer. Changing pots in spring, applying sufficient base fertilizer, applying some thin alum fertilizer water, 0 1% urea and 3% leftover beer in the growing period can make the leaves thicker and greener.
picking leaves
In order to improve the ornamental value of the formed Podocarpus, the old leaves of Podocarpus should be removed in March, and the flowers should be peeled for brocade: the handle should be kept when picking to stimulate the axillary buds to grow new green.
Carve fear
Carving should be done during the dormant period. In order to cultivate the simple tree type of barn.