What varieties of ash seeds are there? What are the seedling raising methods?
Ash is also called Qinglang wood and white thorn tree. It is an excellent street tree, urban greening and ecological timber forest tree species, and is now widely planted in our country. In addition, there are many kinds of ash, most of which can tolerate slightly saline-alkaline soil, and all can be propagated by seeds, cuttings, layering and other methods. So what should be noted when raising ash seedlings from seeds? And what varieties of ash seeds are there? Let's find out together.
What varieties of ash seeds are there?
1. Golden-leaf ash
Golden-leaf ash is a new colored-leaf variety of the deciduous tree Chinese ash in our country. Its leaves are golden yellow in spring, summer and autumn, and within more than 20 days before leaf fall, all the leaves on the tree turn yellow.
2. Large-leaf ash
Large-leaf ash is a deciduous tree, up to 8-15 m tall. Leaves are opposite, odd-pinnately compound, with 3-7 leaflets, mostly 5; the central leaflet at the top is especially large, with a wedge-shaped or broad wedge-shaped base, a pointed or bluntly pointed tip, and shallow but coarse blunt serrations along the margin.
3. Small-leaf ash
Small-leaf ash is a deciduous small tree or shrub, 2-5 m tall. Pinnately compound leaves, with 5-7 leaflets, hard papery, 2-5 cm long and 1.5-3 cm wide; the terminal leaflet is almost the same size as the lateral leaflets, with a caudate-acuminate tip, a broad wedge-shaped base, and leaf margins with deep serrations to cleft-like.
4. Foreign ash
Foreign ash, also known as hairy ash, is a deciduous tree, 10-20 m tall. Pinnately compound leaves, with a broad wedge-shaped base, leaf margins with indistinct blunt serrations or nearly entire, yellow-green above, hairless, light green below.
5. Duijie ash
Duijie ash, also known as Hubei ash and Hubei white ash, is a deciduous large tree, up to 19 m tall. Pinnately compound leaves, lanceolate to ovate-lanceolate, 1.7-5 cm long and 0.6-1.8 cm wide, with an acuminate tip, wedge-shaped base, and sharply serrate leaf margins.
What are the seedling raising methods?
Mainly including two methods: sowing and seedling raising, and cutting and seedling raising:
1. Sowing and seedling raising: spring sowing should be early, generally sowing from late February to early March. Drill sowing in furrows, with a seeding rate of 3-4 kg per 667 m2, depth of 4 cm; the depth should be uniform, and you should open the furrow, sow, and cover soil as you go, with a soil covering thickness of 2-3 cm. To make the soil and seeds closely contact, press down after covering soil.
2. Cutting and seedling raising: generally carried out from late March to early April in spring. Select 1-year-old sprout branches from fast-growing, pest-free, robust young mother trees; generally the branch thickness is more than 1 cm and the length is 15-20 cm; the upper cut is a flat cut, and the lower cut is horseshoe-shaped. Insert 2-3 cuttings per hole, spreading the cuttings apart. Spring cuttings should be buried deep, tamped solid, with few exposed tips, inserting 4000 plants per 667 m2.
The above is an introduction to the varieties of ash seeds and seedling raising methods. Everyone can reasonably choose seed varieties for sowing according to local planting conditions. Then pay attention to the seedling raising methods so that strong seedlings grow, ultimately increasing planting yield.
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