Management technology of winter jujube in greenhouse for several years

Winter jujube is a kind of sweet fruit that many people like to eat, and many people will choose a big sweet one when buying winter jujube. at the same time, winter jujube is a high-quality late-maturing fresh food variety in northern Shandong Province. It is called winter jujube because its maturity is relatively late. It is said that the nutritional value of winter jujube is also very rich. So winter jujube hangs fruit for several years. Let's have a look with the editor.

Winter jujube hanging fruit for several years

The main results are as follows: 1. Winter jujube usually takes three years to hang fruit, and the fruiting time of winter jujube is affected by region and variety relationship, which is different from region. In general, it takes three years from infancy to fruit. In jujube tree, it is difficult to sit fruit. At the same time, the jujube head, leaf and jujube hanging have the habit of secondary growth, that is, when the young fruit develops to the size of mung bean, the jujube hanging should continue to extend and grow.

2. Among jujube trees, it is difficult for winter jujube to set fruit. At the same time, the jujube head, leaf and jujube hanging of winter jujube tree have the habit of secondary growth, that is, when the young fruit develops to the size of mung bean, the jujube hanging should continue to extend and grow.

3. In the production of winter jujube, fruit farmers often use gibberellin to promote fruit setting again because the first fruit setting is not ideal. However, when gibberellin is used to promote fruit setting, it is just in time for the second growth of winter jujube. Gibberellin will promote faster growth of branches and leaves, thus plunder the nutrition of young fruit, affect the development of young fruit, and cause a large number of young fruit to fall off.

Management technology of winter jujube in greenhouse

1. Control the height of the tree because of tree pruning. Generally uses the happy shape or the small crown sparse layer shape to carry on the pruning, the tree height should combine the shed height to carry on, generally should be lower than the shed body 30mm 40cm. Pay close attention to the construction and buckle the shed in time. Due to the concentration of time for the construction of the shed and the shortage of manpower, fruit growers should make rational use of the time and build the shed in time.

2. The flowering period of winter jujube trees (from the first ten days of June to the middle of June). In those jujube orchards where the heart is not picked in time before flowering, or if the heart is not cut thoroughly in summer, the jujube head should continue to be heart-picked and young trees should not bear fruit during this period. When the jujube head of the backbone branch is 5-8 nodes, the fruiting tree takes 2-4 jujube heads as nutrient branches where there is space, and other jujube heads are removed along with the growth according to the growth space.

3. Timely and moderate girdling of jujube trees is also called encircling, cutting off phloem and temporarily interrupting the transport of organic nutrients to the roots, so as to relatively improve the nutrition level of aboveground trees and meet the urgent need of early growth and development of flowering and young fruits, so as to improve fruit setting rate and jujube fruit quality.

4. strengthening the prevention and control of diseases and insect pests jujube flowers are sensitive to pesticides, improper use of drugs will lead to poor pollination, resulting in a large number of fallen flowers. Therefore, all kinds of diseases and insect pests should be controlled as far as possible before flowering to avoid the use of drugs during flowering.

How to plant winter jujube trees

The adaptability of jujube trees in the cultivated garden is relatively strong, and the requirements of soil conditions are not strict, so various places can make full use of wasteland and saline-alkali land for cultivation. However, in order to achieve higher economic benefits and produce high-quality and pollution-free products, we should try our best to choose the environment such as air, water source and soil without pollution, flat and open terrain, good drainage conditions, strong soil permeability and good aeration performance. the groundwater level is higher and the garden land with fertile soil is better. When planting jujube trees in mountainous and hilly areas, sunny slopes with deep soil layers should be selected, while shady slopes should not be planted.

What should be paid attention to when planting winter jujube trees

The main results are as follows: 1. The young trees adopt open layered row, happy shape, natural garden head shaping with multi-main branches, and free spindle shaping in dense planting garden. As a result, trees should be pruned, shape with branches, adjust tree structure, arrange all kinds of backbone branches reasonably, control height by falling head, remove dense branches, thin and weak branches, cross branches, overlapping branches, etc., and retract drooping branches and redundant branches. The main purpose of old tree pruning is to retract the backbone branches for renewal and rejuvenation.

2. Clean up the garden, clean up the fallen leaves, weeds, hanging, stiff fruits, grass rings, scrape off the old warped skin, cut off the branches of diseases and insect pests, get rid of heavy mad trees and their big roots, bury or burn them deeply, and reduce overwintering pests and disease sources.

The dormant period of jujube is from November of that year to March of the following year, that is, from the Beginning of Winter to the Spring Equinox. Winter jujube is very popular among the kinds of fruits, but many people like to choose bright red winter jujube. In fact, the bark of jujube can also be used as medicine. Jujube bark can stop diarrhea, and the effect of dispelling phlegm and relieving cough is also very good.