Acacia hi light, hi warm and wet, afraid of flooding. Cold, drought-tolerant, resistant to soil and thin salinity, the summer bark is not resistant to the hot sun. Has strong resistance to harmful gases such as sulfur dioxide and hydrogen chloride.
Cultivation method
According to the survey, in the greening of street trees in Beijing, most of the plane trees were transplanted with big trees. Before the sprouting in early spring, naked roots were planted, and the compost was used as base fertilizer. Acacia roots are shallow and rhizobial bacteria are produced. Therefore, it is not necessary to apply fertilizer every year. Before entering the winter, it is necessary to pour frozen water once. Before the rainy season, the growing season should also be watered 1-2 times a month. Acacia root is shallow and planted should not be too deep. After planting, management should be strengthened. The drought season should be watered in a timely manner to keep the soil moist and prevent rot.
Pruning
According to an on-site inspection of the street trees in Beijing, it was found that the pruning of Albizia julibrissin in Beijing is natural and happy. When the 3-4 year old sapling trunk is more than 2 meters tall, it can be pruned and dried. Select the collateral branch as the main branch, use it to expand the crown, in the winter for the three main branches short, in the main branch culture several lateral branches, each other mis-distributed distribution, each occupy a certain space. When the tree crown expands too far and the bald branch phenomenon appears in the lower part, it is necessary to retract the head in time. Several strong buds in the lower part are gradually formed to take advantage of it and continue to grow in Yichun to form a new trunk; Crown. Usually pay attention to cut off dead branches, over dense branches, branches and branches, cross branches, etc., in order to enhance the viewing effect.
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