Cherry tree planting time
Cherry trees are usually suitable for planting from March to mid-April.
Little is known about cherry tree cultivation.
1. It is easy to produce a large number of root seedlings around the rhizomes of Prunus macrophylla, and it is often used as the rootstock of Prunus macrophylla in production. The method is as follows: in spring and summer, the tiller seedlings growing around the root system are cultivated in the soil with a thickness of about 30 cm to make them take root; after autumn or before germination in the following spring, the rooted tillers are separated from the plants, and planted in a nursery for cultivation, so as to be used for grafting big cherries.
2. The methods of layering propagation of cherry rootstock seedlings in layering seedling production mainly include vertical layering and horizontal layering.
(1) Vertical layering: Planting cherry rootstock seedlings in the nursery in autumn or early spring. When planting, first dig a ditch with a depth of about 30 cm according to the row spacing of 1- 1.5 m, and then plant the rootstock seedlings in the ditch with a spacing of 50-60 cm, with the root neck lower than the ground. 5-6 buds are cut off before the rootstock seedlings germinate, and when the sprouted new buds grow to about 20 cm, 1 time soil culture is conducted, with a thickness of about 10 cm, and when the new buds grow to 40 cm 10 cm. Topdressing and irrigation should be carried out after each soil tillage. In the future, comprehensive management will be strengthened and the soil will be properly fertilized according to the situation. After the leaves fall in autumn, the soil can be removed and the plants can be divided.
⑵ Horizontal layering, also called buried layering, is a widely used method in cherry rootstock propagation. Ditching in early spring, with row spacing of 60-70cm, depth of 20cm and width of 20cm. Then, the excellent 1 annual rootstock is planted obliquely in the gully. The included angle between the rootstock and the ground is about 300, and the plant spacing is roughly equal to the seedling height. It is practical after planting, and the soles are watered. After the seedlings survive, the lateral buds germinate and grow new buds. When the new shoots grow to about 10 cm, press the rootstock horizontally into the bottom of the ditch, fix it with twigs, cover the trunk with about 2 cm of soil, and then water it. Later, with the growth of new buds, cover the soil several times until it is flush with the ground. In order to promote the growth of seedlings, 20 kg/mu of urea was applied in early and middle June. The seedlings with good growth can be grafted in the nursery from late June to early July, and those with poor growth can be grafted in September. When raising seedlings in autumn, cut the seedlings into independent rootstocks.