I Preparation of seedbed

The seedbed for spreading cypress needs to choose a place with relatively flat terrain and good soil drainage. It is best to choose sandy loam. The width of the seedbed is 120 cm and the height is 30 cm. A layer of 8 cm peat soil and 5 cm fine sand can be paved on the seedbed, which can effectively improve the permeability of the soil and the effect of water conservation will be better. In addition, the survival rate of cutting should be improved one day before cutting

II Selection of cuttings

Choose the branches that are tender, but they must grow well and have not been attacked by diseases and pests. The length is between 6cm and 10cm. When cutting them off, keep the incision flat and keep the top tip. There are two or three leaves on them, and cut off some twigs under the branches. Cuttings must be cut in time after treatment, otherwise the survival rate of stale branches will be reduced

III Breeding time

The best time is between the second half of July or the first half of August. During this period, the temperature is relatively high, there is more rain, and there is plenty of sunshine. In this way, it can be conducive to rooting. It is not good to be earlier or later than this time period. In addition, the depth of cutting is about 2.5cm, and the row spacing is generally 5cm to 10cm

IV Post management

After breeding, the most important work is to do a good job of shading and spraying water, and the temperature and humidity must be well controlled

1. Once the cuttings are cut, spray water immediately, so that the branches can be closely combined with the culture medium, which is conducive to the rooting and absorption of nutrients

2. To set up a shade shed for the breeding seedbed, we should pay attention to checking the temperature frequently in the later stage. The temperature needs to be kept between 20 ℃ and 25 ℃. If the temperature is too high, the rooting speed of cypress will be very slow, and if the temperature is too low, the cutting of cuttings will rot

3. At ordinary times, the relative humidity in the shade shed should be kept between 80% and 85%, especially the breeding substrate should be kept wet, but it should not be too wet, otherwise it will also cause the occurrence of rotten roots. The humidity of the air can be achieved by spraying with a spray pot, and the roots and leaves should be sprayed in place

4. There is another thing that must be done well, that is, weeding and pest control. In the later stage, after cuttings take root, the shading shed can be removed, and the time for laying cypress to bask in the sun can be appropriately extended