A healthy mother plant of root and ear can ensure a good growth situation of root and ear, which is not easy to get sick. Therefore, the mother plant of root and ear must be strictly selected. Generally, it is 5-10 years old, which is suitable to be used as a tree for greening seedlings. In addition, it is required that the mother plant is robust, free from pests and diseases, with thick green leaves and dense branches and leaves.
April and may are the best time of cutting every year. We should take advantage of this opportunity to collect roots and ears.
The remaining roots of seedlings after excavation can also be collected as cutting materials.
The treatment of root and ear plays a very important role in the growth of plants, so it should be treated in time after the collection of root and ear.
Select the root system with a section of 0.8-1.2cm, cut it out for about 10cm, and put it in a cool and ventilated place, so as to make the root evaporate the excess water and prevent the root system from rotting. Generally, it can be dried for about a week.
The substrate and environment of root cutting should meet certain standards. It is better to choose pure river sand with the size of 0.5-1.0mm as the cutting substrate, which has the advantages of good ventilation and drainage.
Before cutting, the cutting bed is made of bricks, and the size of the cutting bed is determined according to the specific cutting quantity.
Put the substrate into cutting bed, level and compact.
The best cutting method is row cutting. The plant spacing should be kept at 4cm, and the row spacing should be kept at 6cm. It's better to measure it with tools to avoid too dense cutting and hindering plant growth.
Use a small shovel to open a sloping ditch in the soil, the depth is about 7cm, and the ear of the root is inserted into the sand bed about two thirds. Then place the ear of the root neatly in the ditch at an equal distance of 4cm, head up, and then cover the soil and compact it.
Just after root cutting, it needs to be watered once to maintain the temperature of the surrounding environment at 15 ℃ - 25 ℃, and the relative humidity of the air at 70% - 80%, to ensure sufficient light and a little shade, so that the cuttings can be maintained under such an environment, it is easy to form adventitious roots and buds, and the survival rate will be greatly improved.
