How to grow cedar
Cedar is an evergreen tree that blossoms from October to November every year. Its crown is steeple-shaped and its leaves are needle-shaped. It is planted in many places in China. So how is it planted?
How do you grow cedar?
1. Sowing and planting
The main results are as follows: (1) choose cedar seeds with high quality and full grains. Sowing in the middle and last ten days of March (October-November) with a sowing rate of 75kg / ha, or early sowing. Before sowing, soak the seeds in cold water for 1-2 days, dry them and begin to germinate after 3-5 days, which lasts about 1 month, and the germination rate is up to 90%.
(2) choose the land with flat terrain, plenty of sunshine and fertile soil to sow and raise seedlings. Soil preparation, weeding, fertilization and watering ahead of time. The sowing depth should be kept at about 2 cm.
(3) the one-year-old seedlings are 30-40 cm high and can be transplanted in the following spring.
two。 Cuttage planting
The main results are as follows: (1) cutting propagation can be carried out in both spring and summer. It should be before March 20 in spring and late July in summer.
(2) in spring, cutting the one-year-old stout branches of young mother trees and treating them with rooting powder or 500 mg / L naphthylacetic acid can promote rooting. Then insert it into the well-breathable sandy soil, fully water it, and build a double-layer shade shed for shade.
(3) the semi-lignified branches of the same year should be selected as cuttings in summer. In the management, in addition to strengthening shading, plastic film should also be added to maintain humidity. Callus can be formed 30-50 days after insertion, and external fertilization can be carried out with 0.2% urea and 0.1% potassium dihydrogen phosphate solution.
After nurturing, the seedlings can be transplanted in February-March in spring. When transplanting, the plants should carry soil balls, reasonably control the distance between plants, and do a good job of topdressing, pruning and pest control.
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