Cutting time

Cutting can be carried out in spring and summer

Selection of seedbed

Try to choose the land with leeward and sunny, no ponding, no diseases and pests, no weeds, sufficient fertility and easy to manage as the seedbed. When the soil is sticky, it can be properly mixed with sand and pay attention to disinfection

Selection of cuttings

On the same plant, generally choose the sunny branches in the middle and upper part of the current year, and the branches and leaves are strong. On the same branch, the middle and lower branches are generally selected, and the shear opening shall be smooth, with the upper end cut into a horizontal plane and the lower end cut into an oblique plane. The length of the cuttings is about 15-20 cm. The cuttings must have two or three buds. The upper cut is about 1.5 cm away from the buds, and the lower leaves are removed

Treatment of cuttings

Cutting, cutting and cutting shall be carried out at the same time. In order to improve the rooting rate, you can soak it with rooting powder for 2-8 hours

Cutting square hair

When cutting, pay attention to the upper and lower ends of cuttings, and do not reverse cuttings. The cutting must be closely connected with the soil to prevent scratching the cortex of the cutting under the cutting. Generally, one or two buds should be exposed on the ground for cutting depth, and marks and records should be made after cutting

Post cutting management

Temperature

The optimum temperature for cuttings rooting is 20 ℃ ~ 30 ℃, below 20 ℃, cuttings rooting is difficult and slow; When the temperature is higher than 30 ℃, the upper and lower scissors of cuttings are easily infected by bacteria and rot, and the higher the temperature, the greater the proportion of rot. When low temperature is encountered after cutting

The main measures of heat preservation are to wrap the flowerpot or container used for cutting with film; When cutting temperature is too high, cooling measures are mainly for shading, covering 50 to 80% of sunlight. At the same time, spraying 3~5 times per day. The higher the temperature is, the higher the temperature is. p>

Humidity

After cutting, the relative humidity of the air must be kept at 75 ~ 85%. The basic requirement of cuttings rooting is to ensure that the cuttings are fresh and tender before rooting, and photosynthesis can be carried out to produce rooting materials. However, no rooted cuttings can not absorb enough water to maintain the water balance in the body. Therefore, spray evaporation must be adopted to reduce the water evaporation of cuttings: under shading conditions, sprays are sprayed 3~5 times a day, the higher the temperature is, the higher the number of sprays is, the lower the temperature is, the less the number of sprays is. But too much spray, the cuttings are easily infected by the bacteria and rot, because many kinds of bacteria are found in water. p>

Illumination

Cutting propagation is inseparable from sunlight, because cuttings need to continue photosynthesis to produce nutrients and rooting materials to meet their rooting needs. However, the stronger the light, the higher the temperature in the cuttings, the stronger the transpiration of cuttings and the more water consumed, which is not conducive to the survival of cuttings. Therefore, it is necessary to cover 50 ~ 80% of the sunlight after cutting. After the root system grows, gradually remove the shading net: remove the shading net at 4:00 p.m. every day in sunny days, and cover the shading net before 9:00 a.m. the next day