How many years do jujube trees usually bear fruit?

Red jujube grows in mountains, hills or plains below 1700 meters above sea level. It is a temperature-loving fruit tree with strong tolerance to drought and waterlogging, but it requires higher air humidity during flowering, otherwise it is disadvantageous to pollination and fruit setting, and is sensitive to light. It has strong adaptability to soil, barren and saline-alkali tolerance, but is afraid of the wind. Let's take a look at the fruit of jujube trees for several years.

How many years do jujube trees bear fruit?

Jujube seedlings usually bear fruit in the second year after planting. As the saying goes, "Peach, plum, four pear for five years, walnut and persimmon for six or seven years, mulberry can feed silkworms in seven years, and jujube trees can be sold for money." It means that the fruiting period of jujube is short.

How to protect flowers and fruits in jujube trees

1. To restrain vegetative growth, adjust the contradiction between growth and fruit, and promote fruit setting, such measures include root cutting, coring, sprouting, branch thinning, nail opening, ring cutting, cutting, fertilizer and water management, and so on. it can regulate the contradiction between nutrient distribution and operation between tree vegetative growth and flowering and fruit, improve tree nutrition level, and make more nutrients needed for flowers and fruits.

2. Spraying water at flowering stage can increase the air humidity, and the air humidity during flowering period is not less than 60% to 70%, otherwise it will be affected. The effect of spraying water in the evening or morning is good, generally combined with foliar fertilizer spraying 0.3% 0.5% urea.

3. Release bees in jujube orchard and increase pollination medium. some jujube varieties are self-pollination and some are cross-pollination. Intra-variety pollination or inter-variety pollination can set fruit well, and the effect of increasing pollination media is good.

4. Spraying plant hormones and trace elements, mainly gibberellin, 2.4 Mel D, paclobutrazol, dwarf, B9, indolebutyric acid, indole acetic acid, acetic acid, borax, boric acid and so on.

How do jujube trees bear more fruit?

1. Three sprays of florescence: the flowering period of jujube is longer, which can be divided into three periods: the early flowering stage, the full flowering stage and the last flowering stage, which can last for more than a month, that is, from late May to the end of June, and generally enter the flowering stage around June 8. Jujube blossoms like wet and afraid of dry, but at this time the weather is hot and dry, and there is a lot of wind and dust, which can easily reduce the dense leaves of the stigma of jujube, make the stigma adhere to a lot of dust, and seriously affect the normal pollination. At the same time, due to the harm of dry and hot wind, jujube transpiration increased, at this time, such as lack of fertilizer and water, it is easy to make the stigma withered and fall off, so spraying fertilizer, spraying water at flowering stage can greatly improve the fruit setting rate of jujube.

2. Reasonable pruning: jujube pruning can adjust the tree potential, make full use of nutrients, ensure the ventilation and light transmission of jujube, increase the fruit-setting position, and reduce the number of rotten fruit and fruit drop, so as to achieve the purpose of increasing production. Jujube pruning is mainly thinning, truncation and contraction. Should be done: sparse through dense branches, remove cross branches, cut off drooping branches, compress too high branches, strong trees retract lightly, weak trees retract, old trees remove old branches properly, and young trees prune around shaping. The time of pruning should be from the Beginning of Spring to jujube sprouting.

3. Timely manicure: manicure is annular peeling. Nail opening can inhibit vegetative growth, prevent jujube mad disease, improve the nutritional conditions of jujube flowers and young fruits, and make flowers and fruits fall less and sit more. Therefore, the agricultural proverb has the saying that "the jujube tree will bend over when it blossoms and cuts a few knives." Generally speaking, the yield of jujube trees can be increased by about 30% by opening armour. Nail opening should be carried out when the jujube tree blossoms at 1/3, and the opening should be 30-40 cm from the ground. The opening should be 0.5-0.7 cm wide and the depth should reach xylem, but the xylem cambium should not be damaged. The knife edge should be flat and do not leave stubble. After opening, apply an appropriate amount of pesticide to the nail mouth to prevent insect pests. Jujube trees that are less than 7 years old and whose trunk diameter is less than 10 cm or are not robust should not be manicured. The nail opening part should be replaced year by year.

4. New branch pinch heart: new branch pinch heart can control the uncoordinated growth of jujube crown, facilitate the formation of reasonable crown, dense and uniform branches, good ventilation and light transmission, control the excessive growth of branches that do not need to expand, and save nutrients. it is beneficial to improve the fruit setting and fruit growth of jujube. The experimental results show that the length of the jujube code of the new branch can be up to 45 cm, the maximum number of fruit can be 12, and the length of the jujube code on the unpinched branch is only 25 cm, and the maximum number of fruit is 5. At the stage of jujube branch germination in mid-late May, 5-7 cm-long new branches growing in the dense branch area of jujube tree should be selected.

5. Fertilization and watering: jujube needs water and fertilizer at the early flowering stage and the last flowering stage. Generally, the yield of each adult tree can be significantly increased by applying 15 kg cake fertilizer and 1 kg ammonium bicarbonate or 50 kg human feces and urine at the early flowering stage and 1 kg urea or 1 kg compound fertilizer at the last flowering stage. The method is to dig a circular ditch with a depth of 40 cm and a width of 40 cm from the tree trunk, sprinkle the fertilizer into it, fill the ditch with enough water, and fill the ditch after the water seeps.

6. Releasing bees during flowering: jujube is a typical insect-pollinated flower, which cannot be pollinated by itself or by the wind, but it is rich in nectar and fragrance, and bees are the best pollination medium. During the florescence, the beehives were placed evenly in the jujube orchard. The distance between the hives was no more than 300m. The bees began to move at 11 ℃, and the most active at 16-29 ℃. The use of honeybee pollination can greatly increase the fruit setting rate. However, during the release of bees in the jujube orchard, it is strictly forbidden to use carbaryl and pyrethroids, which are highly toxic to bees.

[jujube picture] jujube planting time. How many years does the jujube tree bear fruit?

Content Abstract: jujube is a common variety of fruit, the plant belongs to tree plants, alias Zizyphus jujuba, etc., recorded in the family Rhamnaceae, with the growth characteristics of shrub plants. The next part of this article is to bring you a complete picture of jujube trees, as well as the planting time of jujube trees and the relevant contents of the results of several years.

[photo Collection of Jujube trees]

▍ plant materials

Jujube is a deciduous tree species, the plant height is about 5 meters, the highest can reach more than 20 meters, the bark is gray, brown and so on, the branches are smooth, mostly zigzag, leafy thorns.

Jujube leaves, papery, with oval characteristics, can grow into an oval in the later stage, the length is about 3 cm, the top is more sharp, the flowers are yellowish green, will blossom in May-July, and the fruit period is from August to September.

Planting time of ▍ jujube

Jujube, with the characteristics of long life, a jujube tree can grow for more than a hundred years, and the best time for jujube planting is May.

Most plants will enter a prosperous period of growth in spring, jujube trees are more dry-tolerant, in April and May, the climate is suitable, when planted, rooting will be better. Ordinary jujube trees, which need to grow for 3 years, will begin to blossom and bear fruit normally. Jujube trees cultivated in May can keep up with the normal flowering and fruiting time in the third year.

Secondly, jujube can be directly divided into autumn cultivation and spring cultivation, spring cultivation time is May, while autumn cultivation is before winter, the soil remains warm, jujube root wounds will be easier to heal.

Fruit of ▍ jujube in several years

The fruiting time of jujube is 2-3 years old (August-September).

The fruiting time of jujube tree is mainly based on the planting details, variety and regional climate, and there are many influencing factors, and the flowering and fruiting period are uncertain. According to the different planting methods, the fruiting time may not be certain. the jujube cultivated by cutting seedlings will bear fruit within 3 years, while the varieties sown with jujube seeds will take about 7 years at most.

Common varieties of ▍

July fresh: the fruit is round, sweet meat is fine, the most suitable for fresh food, plant skin is slightly thinner, the color is dark red, no wax texture. The fruit is rich in nutritional elements, the core is small, and the overall edible rate is more than 98%.

Egg jujube: its fruit is larger, and the size of the egg is the same, the average weight of each egg jujube can reach 30 grams, but the pericarp of the jujube is thicker and has strong storage resistance.

Pear jujube: this variety of jujube, the fruit is large, oblong, the fruit growth period is about 110 days, the growth of the plant needs water, once in the state of lack of water, it is easy to die.

Summary: today, the above mainly brings you the relevant content of the jujube, for the jujube planting time, as well as the jujube fruit time to do a detailed introduction, through the above reading, hope to provide you with useful information.

Jujube trees bear fruit for several years

Jujube is an autumn fruit, which is deeply loved by consumers because of its high vitamin content, rich nutritional value and crisp taste. Jujube tree in China's fruit trees, the fruiting rate is very high, and the fruiting time is very fast, but in its listing season, there will be a phenomenon that supply falls short of demand in some areas.

Jujube trees bear fruit for several years

To see what kind of jujube tree is, generally speaking, ordinary jujube trees do not have seedlings that bear fruit in the same year. If jujube seedlings are grafted, they will hang fruit in 2-3 years. If you use seedlings sprouted from the roots of jujube trees, they can hang fruit in 3-4 years. Generally speaking, seedlings sown with seeds can hang fruit in about 7 years.

How to improve the fruit setting rate of jujube trees

1. Improve the nutrition of the tree. The improvement of tree nutrition depends on fertilization. On the basis of fertilization in October of previous years, it is necessary to promote flowering fertilizer in April and pre-flowering fertilizer in May. For the flowering fertilizer in April, the amount of fertilizer applied to adult jujube trees should be 0.5 kg of urea, 1 kg of calcium superphosphate and 0.5 kg of potassium sulfate. In May, before flowering fertilizer, 1.5 kg compound fertilizer was applied to each fruiting jujube tree to prepare sufficient nutrition for flowering. Flowering is the period when jujube trees need more water. Pre-flowering water should be irrigated once combined with pre-flowering fertilization to increase soil moisture and air humidity, so that there is enough water in the tree.

2. Improve the microclimate in the field. When the florescence is hot and dry, you can pour small water to increase the air humidity and lower the ambient temperature. You can also spray water evenly to the flowers and fruits in the evening to increase humidification. The number of times of spraying water depends on the degree of the weather. Generally, it is possible to spray 3MuthMel once every 3 days and spray it continuously for 5 times, thus achieving a very good effect. If it rains heavily during the flowering period, it should be drained in time after the rain, so as not to cause the excessive growth of branches and consume too many nutrients.

3. Release bees at flowering stage. Releasing bees at flowering stage can increase the fruit setting rate by more than twice. Put a box of bees per mu in the jujube orchard, such as spraying bees before and during flowering, use pesticides selectively, and do not use pesticides such as carbaryl or pyrethroids, which can kill honey, so as not to cause bee poisoning and affect pollination.

Pruning method to improve fruit setting rate

Prune reasonably according to the distribution of branches and the density of new branches. When jujube sprouts to the first ten days of June, it mainly includes sprouting, heart-picking and vegetable branches. Sprouting is to erase the buds that sprout from the branches that are not in a good position and affect the growth of fruit branches from the roots, and the sprouts will be carried out in early May. Coring means that when the jujube grows to a certain extent, the top tip is removed, which can effectively inhibit the vegetative growth of the jujube tree and turn the jujube tree to reproductive growth. Coring can increase the yield by 5% Mel 10%. The timing of coring varies due to different climatic conditions, generally in the early stage of flowering, when picking the heart, it is required to remove the developing branches first, and then pick all the few fruit branches without coring after 7 days. The coring length of weak branches is 5cm, and that of strong branches is 6cm. Branch thinning is to lose the overgrown branches, overdense branches, overlapping branches and cross branches in time. Thinning branches can reduce nutritional consumption, improve the ventilation and light transmission conditions of the crown, increase the fruit setting rate and improve the fruit quality.

Harvest of jujube fruit

Harvesting method: manual picking.

1. Picking by hand. Mainly suitable for fresh food and processing black jujube, southern jujube, drunken jujube and other jujube fruit harvest. Although it takes a lot of labor, it can ensure that the fresh jujube will not be damaged and is conducive to storage and processing.

2. Vibrate the harvest. It is mainly suitable for the harvest of dried jujube fruit. Generally, the jujube branches are oscillated with bamboo poles or sticks, and the jujube is connected with a single cloth under the tree, so as to reduce the damage of jujube fruit and save the labor of jujube picking. When harvesting with this method, attention should be paid to keeping the tree. The vibration site should be relatively fixed every year to minimize scars, especially to avoid "counterpart scars". In addition, the direction of the lower rod should not be facing the direction of the extension of the big branch, so as not to break the side branch.

Because the species of jujube are not different, the time of fruiting will be different. Usually we plant jujube trees, if we want to increase the fruit setting rate, we should start from pruning, fertilization, pollination and other aspects. Jujube is a kind of variety that is not tolerant to stagnant water, so we must pay attention to drainage in the field, otherwise it will cause fruit trees to rot.