One, potted planting:
Potting soil configuration for the humus: garden soil: sand ratio of 7:2:1. planting a good watering 1 time (the bottom of the basin water seepage), the normal spring 2 days or so a water (water is best in the sun do not directly tap watering). Usually water at noon, summer 1 day 1 time, morning and evening watering is better. Fall 2-4 days 1 time water, winter to keep the potting soil as long as moist can not water. To grow well, in the spring and autumn with well rotted fertilizer (you can use eggshells, amalgamated water, bad milk, etc. into a bottle of high temperature rotting) to water (water fertilizer ratio of 10:1) about 10 days to water 1 time .
1, potted planting time in spring February-March is good, fall can also be carried out. Before planting, the root system and branches and leaves should be pruned once. In order to prevent the elm tree sap loss is too much, resulting in wound rot death, can be in the post wound coated with a medical eye or sulfa ointment, and then planted on the ground with vegetative sand or tile pots to raise the bad. After raising bad stumps, to be on the fine pot. The use of loose fertile garden soil or leafy soil, conducive to the development of the root system. Its bonsai pots should be used purple sand pottery pots or glazed pottery pots, the shape of rectangular and oval, pot color to plain color is good.
2, modeling elm modeling should be cut mainly, cut and tie and use. According to the basic form of its old pile, you can make straight stem type, curved stem type, slanting stem type, horizontal stem type or cliff type and other styles. Because of its developed root system, it may also be made into a root-raising or rock-attached bonsai. Elm branches and trunks are soft, can be coiled into a variety of styles of bonsai. Elm village branches and leaves are resistant to pruning, so it can be cut into a cloud type, but also according to the creative intent of the producer, cut into the desired shape.
Two, maintenance
1, place elm trees like light and hardy, so it should be placed in a good light, air circulation environment. In summer, the bonsai can be placed on the wooden board, foam board, to reduce the root system due to ground heat conduction and burns.
2, watering to keep the potting soil moist, but should not be waterlogged. When the weather is hot, you can spray water to the ground in order to increase humidity and reduce temperature. However, it is not advisable to spray water on the leaves, so as not to affect the styling of the elm bonsai by oversizing the leaves.
3, fertilization in the growing season once a month to apply a thin fertilizer to nitrogen, potassium fertilizer-based, winter should not be fertilized.
4, plastic elm sprouting force is strong, so in the growing season should be pruned often. Elm leaf picking can promote leaf sprouting and make the leaves smaller. Department of Energy into the fall before, divided into several times the old leaves removed. 20 days or so later, you can grow new leaves, re-entering the ornamental period, and can delay the leaf drop.
5, turn over the pot generally 2-3 years to turn over the pot once, the time to choose in the spring sprouting period is appropriate.
6, pest control can be sprayed with dichlorvos to prevent and control the golden flower bug, shellfish, asphodel and other pests.