Jujube Tree Winter Management Methods and Key Technical Points
Jujube trees are cultivated on a very large area in China, with a great many varieties, and they are also very popular among many people in China. Jujubes contain very rich nutritional elements, such as vitamin C and vitamin P, which are very beneficial to human health. When growing jujube trees, winter management is something we need to pay special attention to. So how should jujube trees be managed in winter? Let's take a look below at the winter management methods for jujube trees!
1. Timely orchard cleaning
In winter, most varieties of jujube trees have already finished being harvested. Therefore, in winter the first thing we should do well is the orchard cleaning work. First, we should gather all the fallen branches and leaves, diseased and rotten fruit, and weeds in the jujube orchard and take them out of the orchard in a centralized way to be burned. Then we should do the soil preparation work well; the soil should be finely and deeply plowed, which can improve the soil structure, promote the downward growth of the jujube tree roots, and enhance their growth capacity. Then we should do a good job of disinfecting the whole orchard, eliminating the pathogens and insect eggs that lie dormant over winter on the soil and tree trunks, ensuring the jujube trees can grow normally the following year.
2. Application of base fertilizer
In winter we should also apply sufficient base fertilizer to the jujube orchard; base fertilizer is also the key to ensuring the yield of jujube trees the following year. Generally, the base fertilizer is mainly composed of decomposed farmyard manure, combined with an appropriate amount of ammonium bicarbonate. It should be applied together with the deep plowing of the jujube orchard, and generally the application depth of the base fertilizer should be controlled at about 30 cm. The application time should be after the autumn harvest, all the way until before the jujube trees shed their leaves. The amount of fertilizer applied should be controlled according to the actual conditions such as tree age and growth vigor, and after fertilizing, a moderate watering should be given. The fertilization method is mainly trench application, such as ring-shaped trenches, radial trenches, and so on.
3. Shaping and pruning
Shaping and pruning is also an indispensable management task for jujube trees in winter; whether the pruning is done well or poorly directly affects the growth of the jujube trees the following year. First, we need to cut off branches such as diseased and pest-infested branches, crossing and overlapping branches, and competing branches, thereby improving the photosynthetic capacity of the jujube trees and avoiding excessive consumption of nutrients. Then, branches such as aging branches and upright branches should be cut back, so as to balance them, enhance the growth vigor of the jujube trees, and cultivate bearing branch groups. Finally, appropriate heading back should also be done, cutting back the one-year-old jujube heads of the extension branches, to avoid the extension growth of the jujube heads becoming too long and affecting fruiting the following year.
4. Pest and disease control
Pest and disease control is also something we need to pay special attention to in winter. Doing a good job of orchard cleaning also has the effect of preventing and controlling pests and diseases. In addition, we should also scrape off the old bark and peeling bark on the jujube tree trunks, which can not only prevent and control pests and diseases but also has the effect of stimulating tree growth. After scraping the bark on the trunk, the trunk should be properly whitewashed, which can both protect against cold and keep it warm, and also eliminate pathogens and insect eggs. Finally, when cleaning the orchard, we should also manually control insects, eliminating the adult insects that lie dormant over winter, to ensure the jujube trees overwinter safely.
The above is a brief introduction to the winter management methods for jujube trees. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!