Which family does Jin Yu belong to?

Golden elm is also called golden elm. Ulmus of Ulmaceae is a variety of Ulmus pumila. Golden leaves, bright colors and good texture; The leaves are oval, slightly shorter than those of ordinary elms. It is a new variety of colorful plants cultivated by Huang, a senior engineer of Hebei Academy of Forestry Science.

Elm has strong adaptability to cold and arid climate, strong resistance to adversity, low temperature of -36℃ and strong saline-alkali tolerance. Maintenance management is relatively extensive, and irrigation once or twice after planting can ensure survival.

The suitable growing area is 4710 ′ to 2211′ north latitude (Yichun, Heilongjiang to Zhongshan, Guangdong) and 0/33 56 ′ to 79 55 ′ east longitude (Jixi, Heilongjiang to Hotan, Xinjiang), which spans tropical, subtropical, warm temperate and cold regions.

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Main value:

Ulmus pumila is an important color-leafed tree species in urban and rural greening, so it is suitable for trees and irrigation. Can be used as street trees, yard shade trees, etc. Early spring fruits are more eye-catching, germinate early and are yellow. Wood can be used for furniture, farm tools, vehicles and buildings. Young leaves and young fruits are edible.

Planting and pruning in early spring: after planting elm, it is necessary to carry out plastic pruning to remove redundant branches, dry branches, drooping branches and pests, which can not only cultivate crown shape to improve ornamental effect, but also strengthen plant germination, promote its growth and avoid dry branches in windy and cold spring. The main branches and side branches should be cut short, and some auxiliary branches that are too dense should be sparse.

Pruning for summer growth: Pruning elm trees in summer mainly means removing green branches from branches, pruning branches with weak growth for the second time, and moderately pruning branches with slow bud potential. Pruning can promote leaf germination and enhance ornamental effect.

Elms with high grafting degree can be pruned into steamed buns, while elms with low grafting degree can often be pruned as hedges or various shapes, which can better reflect the aesthetic feeling of elms in combination with the effects of the surrounding environment. When pruning elms planted in the parking lot, the crown width should be controlled within the kerb width of the parking lot, so as not to affect traffic.

References:

Baidu Encyclopedia-Jinyeyu