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First, the morphological characteristics and habits of æž‡æ· æž‡æ· æž‡æ· [Eriobotryajaponica (Thunb) Lindl], for Rosaceae genus. Distributed in Gansu, Shaanxi, Henan, and the Yangtze River basin, many fruit trees are cultivated throughout the South, and Tangxi in Zhejiang, Taihu in Jiangsu, and Putian in Fujian are famous places of production in Xi'an. Xi'an gardens are also cultivated.
It is a small evergreen tree with a height of up to 10 meters. Branchlets, leaves dorsal and inflorescences densely rust-colored tomentose, single leaves alternate, coarsely leathery, shortly stipitate or sessile, often obovate, oblong, apex cusp, base cuneate, coarsely serrate, lateral veins 11 to 21 pairs, the surface wrinkled and shiny. Flowers white, inflorescences terminal, aromatic, flowering from October to December. Pears are spherical or oblong in shape and have a diameter of 2 to 5 cm. They are yellow or orange when cooked and ripen from May to June of the following year.
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Second, the main breeding and cultivation of alfalfa
1. Breeding: Breeding of alfalfa depends mainly on seeding and grafting, followed by cutting, and fine varieties are mostly grafted and propagated. Rootstock uses heather, grafting is mostly done in the spring, mostly in the spring, rootstock with 2 years old heather, stem diameter 1 to 1.5 cm, scion from the quality and robust tree to select the development of full 2 ​​to 3 years of branches, cut into about 15 cm long Small section, cut at the lower end of the slope of 2 to 3 cm, the other side of the slope cut into a shorter slope, the rootstock 5 cm away from the ground to the top, according to the length of the cutting noodles, from the side of the rootstock section slightly The xylem cuts a seam vertically downwards, then cuts the long face of the scion inward, inserts it into the incision of the rootstock, aligns the forming layers on both sides with each other, and then fastens the grafting site with a film strip and ploughs it into a mound.
2. Cultivation: The warm and humid climate is preferred. The grafted seedlings can be transplanted when they are 2 to 3 cm long. Transplanting occurs mostly in early spring. The transplant uses soil ball, digs deep before planting, backfills organic fertilizers such as compost, farmyard manure, then plant seedlings, fills the soil, and finally builds water circle around the rhizosphere and continuously pours 2 to 3 times of water, when the soil in the water circle is slightly dry, it is used to protect the soil. Fertilization mainly uses the combination of organic fertilizer and inorganic fertilizer. Especially after entering the full fruit period, wolfberry needs a lot of nutrition. It is applied twice a year in spring and autumn, and about 5 kilograms of fertilizer is applied per plant. Pruning can be carried out after ripening and picking each year. Thinning of dense branches, cross branches, leggy branches, dead branches, etc. can be done to make the plants airy and clear, with beautiful trees, concentrated nutrients, and promoted growth to facilitate the formation of flower buds.
Third, use æž‡æ· Evergreen in the four seasons, large beautiful leaves, both considerable and fruitful flowers, is an excellent urban green ornamental trees, can be used as a city street trees, can also be isolated or planted in the park lawn before and after the pavilion.
With the development of gardening and the improvement of the level of garden art, evergreen trees have become an indispensable part of modern gardens. They play an important role in beautifying and greening cities and protecting and improving the urban environment. The Luohe City in the south of Henan Province has four distinct seasons, but few evergreen tree species. Therefore, in recent years, we have studied the cultivation techniques of alfalfa. The alfalfa has the characteristics of evergreen, beautiful tree shape, simple management, and not only impressive flowers but also impressive fruit. It has been widely praised by the general public and suitable for large-scale promotion.