1, temperature: strong adaptability, cold resistance, the Yangtze River basin can be put in the open air for winter, such as burying basin piles in sunny soil to prevent freezing damage, which is ideal.
2, lighting: like light, the place should be sunny and well ventilated. Summer is not suitable for shading. When it is too shaded, the branches are slender and the leaves become larger, which affects the ornamental effect. If you put it in your room, it shouldn't take long.
3. Watering: it is resistant to humidity and has certain drought resistance. Watering should not be too much, and watering should be controlled throughout the growth period to make the leaves smaller, thus improving the ornamental value. Especially when crying, don't spray leaves, or the leaves will grow fat. Watering should master "dry-wet, dry-wet, dry-wet alternation" and keep the basin soil dry and wet. When plants enter dormancy in winter, it is necessary to reduce watering, and only when overwintering in the open field is attacked by severe cold, water can be added to make the basin soil moist and prevent freezing injury.
4. Fertilization: Fertilization is the key to cultivate Pu Shu stump bonsai. Branches turn yellow when fertilizer is lacking.
The branches and leaves are slender and the leaves are huge, which affects the viewing. Fertilization should be reasonable and scientific according to the growth of potted trees. If the leaves of plants turn yellow and there are symptoms of fertilizer deficiency, nitrogen fertilizer needs to be supplemented. When the leaf color is normal, nitrogen fertilizer can be reduced or even not applied.
5, pruning: strong germination, pruning resistance. In the young plant stage, it is necessary to "restrain the top and promote the side", pay attention to pruning and shaping, and promote the thickening and bending of the trunk, which is conducive to the later processing and modeling. When planting piles on the ground, the branches and roots should be trimmed, and the long lateral roots should be cut off. According to the shape of the stump, choose the branches suitable for the shape and thickness, and cut off the branches that are not suitable and too thick.
Stump modeling usually adopts the method of coarse binding and fine cutting, while Lingnan bonsai adopts the method of "saving branches and cutting them dry". Plastic stumps should be trimmed frequently, and branches that are too long and protrude from the branches should be cut off to maintain the modeling posture of the stumps. Usually when the new branches grow to 6~8 cm, 2? Cut off the upper part of three leaves, and cut off the drooping branches and sprouting branches on the stem. In order to improve the ornamental value of the stump, you can also take the method of picking leaves, that is, picking all the leaves of the stump tree in July and August, and applying sufficient fertilizer. After half a month, new branches and leaves will grow. Not only will the leaves become very small, but the newly grown leaves will be as fresh and tender as those in early spring. But it is not advisable to pick leaves frequently, otherwise it will affect the tree potential.
6. Pest control: There are powdery mildew, spider mites, butterflies, crustaceans, psyllids and other pests. When psyllid was injured, there were long horn-shaped galls on the leaves, and the leaves were deformed and burnt at the galls, which led to the early shedding of the leaves.