What are the fertilization skills of jujube? How to manage winter?

Jujube is a kind of fruit rich in vitamins, which can not only be eaten fresh, but also can be made into preserved fruit and dried products to eat. Jujube trees are planted in many places in China, and plain and hilly areas are more suitable for jujube growth. What are the fertilization skills of jujube in the process of jujube growth? How to manage winter?

What are the fertilization skills of jujube trees?

Increasing the application of base fertilizer in early spring and topdressing available fertilizer in late spring. There are four methods of fertilization for jujube trees in spring: ring ditch method, radial ditch method, strip ditch method, whole garden or tree plate sprinkling method.

The annular ditch method is used to dig an annular ditch with a width of 60 cm and a depth of 30 cm to 40 cm around the crown. The fertilizer is mixed with topsoil and applied into the ditch, which is covered with a layer of soil.

The radial ditch method is 1.5 meters away from the tree trunk, digging 4-8 trenches outward, 20-40 cm deep and 30-40 cm wide, mixed with fertilizer and topsoil, and covered with soil.

The strip trench method is used to dig a strip ditch with a depth of 30cm, a width of 30cm, a width of 30cm and a width of 30cm between rows or between trees, depending on the crown size and fertilizer. This method saves labor and can be used when fertilizer is insufficient.

Spread the method in the whole garden or tree plate, spread the fertilizer evenly over the whole garden or tree plate, then plough the soil to a depth of 20cm to 30cm, turn the fertilizer into the soil, and then level the land and make a good tree plate.

Second, how to manage jujube trees in winter?

1. Most varieties of jujube trees have been harvested in winter. Therefore, the first thing we should do well in winter is to clear the garden. First of all, we should take all the fallen branches, rotten fruits and weeds out of the jujube garden to burn. Then do a good job of soil preparation, the soil should be fine and deep turn, can improve the structure of the soil, promote the root system of jujube, enhance its growth ability. Then it is necessary to do a good job of disinfection in the whole garden to eliminate the bacteria and eggs lurking on the soil trunk so as to ensure the normal growth of jujube trees in the second year.

2. In winter, we should also apply sufficient base fertilizer to the jujube garden, which is also the key to ensure the annual yield of jujube trees. The general base fertilizer is mainly rotten farm manure, combined with the right amount of ammonia bicarbonate. In the deep turning of the jujube garden, the application depth of the general base fertilizer should be controlled at about 30 cm. The application time should be after autumn harvest until before the fallen leaves of jujube trees. The amount of fertilizer application should be controlled according to the actual situation such as tree age and growth, and water should be properly watered once after fertilization. The main fertilization methods are ditch application, such as annular ditch, radiation ditch and so on.

3. Bandage the trunk, pile up the soil and paint the trunk white to prevent the occurrence of freezing injury.

4. In the northern region, the tree trunk can be protected in winter to prevent rabbits from gnawing on the bark, and the heat preservation and moisturizing belt can be wound at the base of the trunk, or white reflective substances such as Songer liquid film can be smeared on the trunk to reduce the occurrence of rabbit damage.

5. Irrigation with anti-freezing water, covering with plastic film, smoking to increase temperature, combined with spraying national photodynamic (s-inducer) and other measures to improve the ability of anti-freezing.