Cuttage propagation technique of Cedar

Cedar is an evergreen tree, which is favored for its beautiful posture, majestic momentum, tall and straight trunk, and is widely used in landscaping. In addition to sowing and propagation, cutting propagation has a higher survival rate. Better economic benefits and other advantages, let's take a look at cedar cutting propagation technology!

Cedar cutting time

Cedar can be propagated by cuttings all the year round, it is suitable for cutting in the middle and late March in spring, in May and June in summer, in mid-August in autumn, and in late autumn and early winter, but it can not take root in that year. In large area production, spring planting and summer planting are the main methods, with higher survival rate and better economic benefits.

Cedar cuttings selection

The age of the mother tree and cuttings is one of the key factors for the survival rate of cedar cutting propagation. The younger the mother tree is, the higher the cutting survival rate is, and the cuttage of the seed mother tree is higher than that of the cuttage mother tree. The younger the cuttings are, the stronger the meristematic ability is and the easier it is to take root. Therefore, it is best to choose the one-year-old sturdy branches on the young mother tree as cuttings. Cutting cuttings should be carried out in the morning or cloudy days when there is no wind and dew, select one-year-old stout branches as cuttings, about 15 cm long, the base should be cut smooth, and the secondary branches and lower needles should be cut off. Such as summer cuttings, the new shoots extracted in the same year should be cut as cuttings, and part of the old branches of last year should be taken at the base. After cutting, soak the male base with an aqueous solution of 500 mg / kg naphthalene acetic acid for 5 seconds, then cut.

Cedar slotting machine treatment

Cedar seedlings should be raised in places with leeward direction, convenient drainage and irrigation and slightly acidic sandy loam. The nursery bed is made of 100cm wide, 10cm gravel and coarse sand at the bottom, and sifted loess, burnt soil and fine sand on the top, which are evenly mixed with a proportion of 7 ∶ 1 ∶ 1. The seedbed ditches are connected to facilitate drainage. Before the bed, the bed should be ploughed repeatedly, and at the same time, 30 jin of ferrous sulfate and 100 jin of compound fertilizer should be turned into the bed, slightly higher in the middle of the bed to prevent stagnant water.

Cutting technique of Cedar

When cutting cedar, we should separate the cuttings according to the diameter length. Before cutting, we can first open a shallow trench on the seedbed, and then carry out cutting. the row spacing of spring plants is 5cm × 9cm, summer cuttings can be more dense, both direct and oblique cuttings are OK, but oblique cuttings are better, and the contact area is larger, which is beneficial to rooting. The depth of insertion is 6 to 8 cm, compacted after insertion and fully watered.

Cedar post-insertion management

After cedar cuttings, shade sheds or shade nets are used to cover the cedar cuttings, and the best transmittance is 30-40%. After insertion, spray water with a kettle or sprayer every morning and evening and spray less on cloudy and rainy days. After cuttings take root, it is necessary to control the amount of spraying and the number of times to prevent rotting roots. At the same time, the management of fertilizer and water should be strengthened. When the summer planting temperature is high, double curtains should be built to cool down and be ventilated around. The shady shed must be covered early and uncovered late in sunny days, and ditches should be cleared in time in rainy days to drain and prevent waterlogging. After the Beginning of Autumn, the shade shed can be removed to refine the seedlings to improve its resistance. Generally, it can take root about 50 days after insertion, and the survival rate is more than 85%. 0.2% urea or potassium dihydrogen phosphate can be sprayed after shoots to promote new growth. In the following spring, the plant can be planted in the general garden according to the row spacing of 30 cm × 50 cm.