The eucalyptus is a deciduous tree with a mostly red leaf in spring and a feathery green color in summer. The leaves are bright yellow, and the flowers are full of yellow trees. The membranous pericarp of the pods of fruit trees before and after the National Day expands like small lanterns, bright red, and hangs on top of branches. Like flowers. Strong anti-dust capacity is the ideal ornamental tree species for urban greening.
First, seed collection: From late October to November, when the round spherical seeds turn brown, they must be seeded immediately or they will fall off on their own. After removal, peel and fruit stems are removed, and the net seeds are air-dried for 3 to 5 days and stored in a bag or paper bag. In the middle or late December, the seeds will be taken out and mixed with wet sand that is more than 3 times the amount of seeds. They will be stacked in the room and piled 20 to 30 cm high. The grass will be covered, and should be turned over. The amount of water is about 10%.
Second, sowing: Spring sowing in March, in the choice of a good plot of basal fertilizer, sphalofuran granules or zinc phosprate granules 6 to 8 kg per mu for insecticide. After cultivating, make a flat bed with a bed width of 1 meter. The length depends on the convenience of management. Generally, it is no more than 20 meters. Each broadcast 4 lines. The depth of the ditch is 3 cm. The mixed sand in the seed does not have to be sieved out. The seeds and sand are evenly spread in the ditch. The soil is covered with 2 cm and the light step is used as a repression. The water is poured once with small water, covered with straw, and the seedlings are sprayed for about 20 days. Remove the straw. Seedling height 10 cm time seedlings, with 10 to 15 cm spacing between the seedlings combined with water after applying fertilizer. The amount of topdressing should be less for the first time, and 5 to 6 kg of nitrogen fertilizer per acre. Once the fertilizer is applied every 15 days, the amount of fertilizer can be slightly larger.
Third, the seedling management: to often loosen the soil, weeding, watering, keep the bed moist, most of the seedlings after falling leaves in autumn can be up to 2 meters, rough diameter of about 2 cm. The seedlings were graded and graded, and transplanted in the spring of the following year. The roots were cut short before transplanting. The seedlings were cut off from the rhizomes after the transplantation. The seedlings were cut flat from the ground surface and then irrigated. After budding, the buds are often wiped, leaving only the strongest buds to develop into trunks. During the growing season, loose soil, sorghum, watering, and topdressing are often used. In the autumn, straight trunks can be developed. When the height of the trunk reaches the height of the branch point, the main branch can be left to leave the garden for three to four years.
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