Cultivation method of ground-planted Podocarpus
1. Soil: It needs a slightly acidic culture soil rich in humus, loose and fertile, and well drained. In alkaline soil, leaves turn yellow, grow slowly and have a long life span, which can reach hundreds or even thousands of years.
2, watering: Podocarpus is not a Pinaceae plant, not drought-tolerant. On the contrary, Podocarpus is moisture-tolerant, and it needs to be watered frequently during the growing period, but it is not suitable for waterlogging. When it is sunny in summer in Shunde, you should pay attention to watering frequently. Generally, it should be watered once in the morning and once at night. In addition, you should always spray water on the leaves to make them bright green and grow well. There is usually more rain in summer, and Podocarpus is not tolerant of waterlogging, so attention should be paid to prevent long-term water accumulation.
3. Sunlight: Podocarpus is a neutral negative tree species, which can accept strong sunlight and grow in a cool environment. Although the temperature is high and the sunshine is strong in summer, it is not necessary to shade the Podocarpus in summer, because it is beneficial to keep the tree shape under the condition of high temperature and strong light. However, the seedlings of Podocarpus are not suitable for long-term strong light irradiation because of their tender tissues, so it is recommended to keep them in the shade.
4. Temperature: When the outdoor temperature of potted plants in the northern area is stable at about 10℃, leave the room and put it in the outdoor leeward and sunny place for maintenance, and move it to a semi-shady place after summer. When the temperature does not drop to 5℃ in winter, it is necessary to enter the room. After entering the room, control watering, and you can safely overwinter without freezing.
5. Fertilization: Luo Hansong likes to fertilize, and he should apply it thinly and diligently. The fertilizer is mainly nitrogen fertilizer, and appropriate amount of black alum can be added to make alum fertilizer water. Fertilization can be done every 1 ~ 2 months during the growth period, and fertilization can be done at the same time as watering. The ratio of water to fertilizer is 9: 1***.
6. Insect pests: mainly caused by leaf spot and anthracnose, spraying 500 times of 50% thiophanate-methyl wettable powder. Insects include scale insects, red spiders and giant salamander, and 40% omethoate EC 1500 times can be sprayed.
Matters needing attention in planting Podocarpus
1, Luo Hansong likes fertile soil, so it is better to choose fertile soil as far as possible when breeding, such as sandy loam and humus. Of course, the permeability and drainage of soil also need to be very good. During the cultivation of bonsai, we should also pay attention to keeping the soil moist to ensure sufficient water supply during the growth period of Podocarpus. Water evaporates quickly in summer and needs to be watered frequently. The temperature is low in winter, so it needs less watering. At the same time, in order to avoid the occurrence of water accumulation in the basin, watering must be moderate, not too much and not too wet. At the same time, we should also pay attention to placing the bonsai of Podocarpus in a ventilated place.
2, Luo Xiguang, but also very taboo direct sunlight, so it is best to put it indoors. At the same time, in summer, when the sun is exposed, pay attention to shading. In addition, when the Podocarpus grows to a certain extent, its plants become larger and the flowerpots need to be replaced. In addition, attention should be paid to pest control and regular pruning of Podocarpus bonsai. There are still many pests and diseases of Podocarpus. If it is found that it should be handled in time during breeding, pruning can be carried out according to everyone's ideas, usually cutting, tying and pressing.
Method for making Podocarpus bonsai
1. Shearing: We can make various shapes, such as round, conical, multi-layer spherical, etc., by using the characteristics of arhat pine's pruning resistance and small leaf shape, and only need to trim it according to the pre-designed figure. For example, when pruning a three-layer sphere, first choose seedlings with obvious trunk and good upright shape. If the pruning design is a three-layer sphere, the total height is 2 meters, the lower layer is about 50 cm, the middle layer is about 40 cm and the top layer is 30 cm. The height between the first layer and the second layer of the trunk is 45 cm, and the branches with a height of 35 cm between the second layer and the third layer need to be trimmed, and then three balls need to be trimmed. The above three kinds of balls should be longer and bigger, which is more ornamental in proportion. Generally, it is advisable to prune new branches when they are 20 ~ 30 cm away, and prune them several times to make each layer round and dense.
2. Ties: Strong bamboo sticks and tough hemp ropes can be used to make tie shapes. Tie the bamboo stick and the branches tightly with hemp rope, and then fix one end of the bamboo stick on the trunk, so that by adjusting the direction of the bamboo stick, the branches can grow in a specific direction according to the stylist's wishes and achieve the purpose of modeling. It should be noted that the tying method is suitable for the younger Podocarpus, while the older Podocarpus is difficult to tie because of its thick branches, and the effect is not good.
3. Pressing: Pressing modeling is mainly to bend and tilt the trunk, so that the tree presents a completely different artistic beauty on the inclined plane from the vertical plane. Because the branches of Podocarpus are like human arms, the hemispherical leaves produced by the cluster are planted at the top of the branches like the palms of human hands, and the curved tree body is like a greeter bending his arms to greet guests, which is very vivid. It should be noted that after the tree body is bent, the inclined end must be supported by a wooden stake to prevent the tree body from falling down due to excessive inclination, and the contact surface between the wooden stake and the tree body should be padded with straw with moderate thickness to avoid hurting the tree body.