Rapid Seedling raising technique of Euonymus tomentosa in Autumn

Euonymus tomentosa is an evergreen shrub of Celastraceae, its leaves are dark green and glossy, and it is often used as a hedge in landscaping, and the demand for greening is increasing year by year. Due to the drought and high temperature in spring and summer and severe cold in winter in North China, it is not conducive to the propagation and breeding of Euonymus tomentosa. The author has repeatedly tried the rapid seedling raising technique in autumn for many years, realized the seedling raising in autumn, transplanted it in the next spring, and bred commercial tree seedlings in one year, which created better economic benefits. The experience is now introduced as follows:

The main results are as follows: 1. the cutting time should be carried out at the end of August and early October, preferably in the middle and late September, when the new shoots have stopped growing, the branches contain more nutrients, the ability of tissue division is strong, the soil temperature and air humidity are suitable, the management after cutting is simple, and it is easy to root.

Second, the best bed preparation is to go through the summer deep turning of the leisure land as a seedbed, required to make a flat bed, 120 cm wide, 30 cm trail, 6 to 7 meters long. Build a semicircular shade shed with a height of 1.8 meters from the bed surface and a light transmittance of 50% Rich 70%.

Third, cuttings are collected and pruned to collect annual branches from plants that are growing vigorously and free of diseases and insect pests, wrapped in wet sacks and transported back for processing. Cut the collected yellow poplar strips into cuttings 10 to 15 centimeters long, keep 2 leaves in the upper part, and remove the rest. The upper end is cut into a flat mouth and the base is cut into a bevel.

4. Before cutting, the seedbed was watered thoroughly. Under the moist condition of the seedbed, the lower part of the cuttings was inserted into the seedbed with a row spacing of 3 × 5 cm. After the cutting, the seedling bed was watered again and covered with a shade net.

Fifth, plug-in management

1. Water every 3 to 5 days and always keep the seedbed moist. In the first ten days of October, most seedlings began to take root, and the watering times gradually decreased.

two。 Cover the film in late October, remove the original shade net, generally pour overwintering water, and replace it with overwintering film. Before the heavy snow is frozen, the plastic film should be compacted with soil to keep warm. Because the underground temperature of the nursery bed is relatively high and the ground temperature is relatively low, the cuttings have little or no branches in winter to promote the root development of seedlings. At the same time, do a good job of weeding and watering in the shed to make the seedlings survive the winter safely.

3. Early spring management temperature rebounded in early March, it is necessary to pour back green water in time. Follow watering 5 to 10 kilograms of urea per mu. In the middle of March, remove the plastic film, remove the weeds and strengthen the comprehensive management.

VI. Seedling transplanting

1. The transplantation time is generally in late March and early April, and the survival rate is high.

two。 The transplant bed is in the nursery field that is deeply turned into a field with a width of 1.5 meters (with a ridge) and a length of about 10 meters. Along the long side, a trench of 10 centimeters deep is opened every 30 centimeters, and the seedlings are placed 15 to 20 centimeters apart. Cover the soil while pouring the root water. Fully water after transplanting and keep it moist.

3. Fine management transplant seedlings are small, should be carefully managed, timely watering, loosening soil, weeding, to promote the rapid growth of seedlings. When the saplings grow to 20 centimeters high, the heart is removed, which promotes multiple branches.