Efficient cultivation techniques of winter jujube

Winter jujube is sweet and crispy, it is a kind of fruit that many people like to eat, and many people grow it, so what is the efficient cultivation technology of winter jujube? Let's get to know it!

1. Growth habits of Dongzao jujube

The main results are as follows: 1. The main buds have strong germination ability: when winter jujube is cut in winter, only the main branches of the jujube head are cut short, and the main buds at the base of the secondary branches under the cutting mouth can also produce new jujube heads.

2. Jujube hanging stops growing late: Dongzao jujube has the habit of secondary growth. The second prosperous growth of jujube hanging is in mid-late June, which is easy to compete with winter jujube flowering and fruit setting, which is generally disadvantageous to fruit setting, so it is appropriate to pick the heart.

3. Easy polar growth of secondary branches: after several secondary branches are left on the new jujube head, the first secondary branch under the cutting mouth tends to grow polarized (oblique upward upright dust length), so that the jujube head branch after coring still grows vigorously and stops growing late.

4. The growth of the tree is large, and the jujube blossoms at night: because the winter jujube blossoms at night, the green bugs are inactive in the high temperature during the flowering period, and eat a lot of jujube flowers at night, so that the jujube flowers can not set fruit. Therefore, in the management of winter jujube, controlling the damage of green bugs before flowering is the guarantee of high and stable yield of winter jujube.

5. Early flowering and early fruiting is strong, and the natural fruit setting rate is low: the grafted winter jujube trees tend to bear full branches, and the early flowering and early fruiting is strong. However, the flower quantity of winter jujube is large, and its natural fruit setting rate is low, so it should be opened at the flowering stage in order to promote fruit setting. Under the same conditions, the opening time of winter jujube should be 2-3 days later than that of small jujube.

2. Efficient cultivation techniques of Dongzao jujube

1. Select the land with fertile, good drainage and convenient irrigation for planting.

2. Select high-quality seedlings and plant them according to appropriate row spacing and depth.

Seedling selection requirements: pure variety, seedling height of more than 1m, basal stem diameter of about 1cm, good rootstock grafting, no diseases and insect pests, full growth, complete and developed root system.

Because the root system of newly planted young trees is small, the topsoil above the root system is very loose, and the water is easy to evaporate, so it is difficult to ensure the water needed for root growth without plastic film mulching. Plastic film mulching cultivation can not only improve the water supply near the root system, but also improve the soil aggregate structure, at the same time increase the soil temperature, not only slow seedlings quickly, but also rarely die seedlings.

3. After the seedlings survive, reasonable fertilization and watering should be carried out, and attention should be paid to pruning branches during the growing period.

The fertilization of jujube can be divided into two kinds: rhizosphere fertilization and extra-root topdressing. Fertilization in the rhizosphere can be divided into five stages: pre-germination, pre-flowering, young fruit development, fruit expansion and before and after defoliation.

Winter jujube is not very sensitive to water requirements, but it should also be watered 2-3 times during drought before flowering, flowering and young fruit development. Timely and appropriate amount of watering, combined with fertilization can significantly increase the yield of winter jujube.

4. Attention should be paid to the prevention and control of diseases and insect pests in the process of planting.

The most common ecological control measure of diseases and insect pests of winter jujube in China is to raise chickens in jujube orchard. The foraging of chickens will reduce the incidence of insect pests, and chicken manure is a good fertilizer for winter jujube.