Question 2: How many years does it take for jujube trees to bear fruit? If jujube seedlings are grafted, they will bear fruit in 2-3 years. If you use saplings sprouting from the roots of jujube trees, you can bear fruit in 3-4 years; Generally, saplings sown with seeds (jujube stones) can bear fruit in about 7 years.
Question 3: How many years the jujube tree will bear fruit depends on what kind of jujube tree you are. Also, generally speaking, ordinary jujube trees do not bear fruit in the same year, and most of them take 3-5 years to blossom and bear fruit. If they are grafted or pruned, they may bear fruit in the same year. The fruit ripens in September.
Question 4: How many years can jujube trees live? If the site conditions are suitable and the management is proper, jujube trees can survive for hundreds of years. Grafted jujube trees generally begin to bear fruit in the third year.
Question 5: What happened to jujube trees that failed to bear fruit for several years? There are many reasons why jujube trees only blossom and fail to bear fruit. To sum up, most of the reasons are: excessive tree vigor, weak tree vigor, dense tree vigor, dry climate, fertilizer and water management and so on.
1, the problem of excessive growth of jujube trees: open a nail to solve. For strong trees, it can effectively inhibit the downward transportation of organic nutrients and improve the nutrient supply of branches and leaves in full bloom. The suitable time for opening is in full bloom, and the first opening of jujube trees begins at 10-20cm on the ground, and it reaches the xylem with a knife, with a width of 0.3-0.5 cm; Strong trees should be wide and weak trees should be narrow. No residual skin is left when peeling, and insecticide is applied to protect the nail mouth after peeling.
2. The problem of weak jujube trees: topdressing. Topdressing and watering at the initial flowering stage is a key link to improve fruit setting rate and protect flowers and fruits. Topdressing time, from late May to early June. Fertilization amount: 0.5 ~1kg of nitrophosphate or special fertilizer for fruit trees. Fertilization method: 2 ~ 4 holes are opened by shovel and directly inserted. Fertilization site should be applied vertically below the crown edge. Water it in time after fertilization, and then loosen the soil to conserve moisture. Jujube orchards without watering conditions in drought should be topdressing before rain or reducing the amount of fertilization as appropriate.
3. The problem of jujube trees being too dense: thinning branches. Prune jujube seedlings for 1 time during spring germination, and prune them for 1 time in summer at full flowering stage and late flowering stage, so as to erase useless buds and other branches that consume tree nutrients from trunk and trunk branches.
4. The problem of jujube climate drought: spraying water at flowering stage. Pollen germination of jujube requires high air humidity, especially for some varieties of jujube and long jujube. When the air relative humidity is lower than 60-70%, the pollen germination rate will decrease, which will affect fertilization and fruit setting. Water spraying time: the best time to spray water in a day is evening, followed by morning, and noon and afternoon are the worst. Different times of spraying water have different effects on fruit setting.
I hope I can help you!
Question 6: How many years will the newly planted jujube trees bear fruit? Hello, I'm glad to answer your question. It depends on what kind of jujube tree you have. Also, generally speaking, ordinary jujube trees don't bear fruit in the same year, and most of them take 3-5 years to blossom and bear fruit. If they are grafted or pruned, they may bear fruit in the same year. Ask the players when the fruit is ripe in September. I wish it an honor to serve you and hope it will help you.
Question 7: How many years will it take for winter jujube seedlings to bear fruit? What's the current price? It's about 10!
1. Last year, the amount of fertilization was small, especially the amount of organic fertilizer was insufficient. Because the bud stage of winter jujube tree is also the period of rapid growth of jujube hanging, the jujube head grows vigorously in the early flowering stage, and in a period, several organs of winter jujube tree are in the vigorous growth stage at the same time, there will be competition for nutrition. However, the winter jujube tree mainly consumes the nutrients stored in the tree from germination to fruit setting, that is, the nutrients manufactured and stored in the trunk, branches and roots in the previous year. Therefore, the insufficient use of organic fertilizer last year will lead to insufficient reserve nutrition, weak tree potential and prominent contradiction between supply and demand of nutrients, resulting in less or even no fruit setting in that year.
2. Last year, there were too many fruit sets, and flowers and fruits were not thinned. In addition, the amount of fertilization was insufficient, resulting in excessive nutrient consumption, and the tree failed to store enough nutrients for the growth of the next year, resulting in less fruit sets and no fruit sets, resulting in the phenomenon of big and small years.
3. weather conditions. The flowering period of winter jujube is from early June to early July, when the climate is dry and the air relative humidity is low, the pollen germination rate will be reduced and fertilization will be poor, which will further affect fruit setting. The hot and dry wind with high temperature and low humidity will cause a large number of jujube flowers to lose water and dry up, reducing fruit setting. Low temperature and continuous rain will also affect fruit setting. The weather of "light rain will clear up" at flowering stage is beneficial to fruit setting.
In order to improve the fruit setting rate of winter jujube trees, we should pay attention to the following measures in addition to the opening measures:
1. Re-apply organic fertilizer during the dormant period of jujube trees, properly topdressing with inorganic fertilizers such as urea and diammonium phosphate and spraying fertilizer on the leaves in the early stage of germination, early stage of blooming and rapid fruit expansion to ensure the normal nutrition and reproductive growth of the trees.
2. During the flowering and fruiting period of winter jujube trees, flowers and fruits should be thinned reasonably to prevent the trees from consuming too much nutrition. The implementation of technical measures to improve the fruit rate laid the foundation for high yield, but too many fruit sets exceeded the load of trees, which not only affected the fruit quality of the year, but also affected the growth of fruit trees in the coming year. Sparse some weak flowers at flowering stage, shake the fruiting branches repeatedly at fruit-setting stage, and sparse some jujube fruits which are not firm in fruit-setting and fall off automatically due to insufficient nutrition at later stage. Then, sparse the remaining jujube fruits, and remove the cracked fruits which are damaged by pests and diseases, the fruit shape is not correct and the fruit growth is not good, and keep the good fruits in the middle and upper parts of jujube hanging. The amount of fruit left can be controlled in the fruit hanging ratio 1- 1.2, which is basically a single hanging fruit. If the fruit setting is uneven, some single hanging double fruits can be reserved appropriately to ensure the yield of winter jujube.
3. Pick the heart and wipe the bud. By coring the jujube head, the growth is controlled and the nutrient consumption is reduced, which is beneficial to the differentiation of flower buds and the improvement of fruit setting rate. The newly-born jujube sand in the current year, which has a bad planting position, affects the growth of other branches and has no room for development, is thinned from the base, reducing nutrient consumption, sending the tree to complete ventilation and light transmission conditions, improving the photosynthesis of the whole tree and increasing the accumulation of nutrients.
4. Other management measures.
Spraying water at flowering stage: Spraying water at flowering stage can improve air humidity, reduce burnt flowers, facilitate pollen germination and pollination, and improve fruit setting rate. The spraying period is from the early flowering period to the full flowering period, and the best spraying time is in the evening. The number of water sprays depends on the weather, and it should be sprayed several times in dry years, generally 3-4 times. The larger the spray range, the better the effect.
Question 8: How many years have jujube trees borne fruit 1. Choose jujube orchards carefully.
Densely planted jujube orchards should be selected in the farmland with shelter from the wind and sunny, flat terrain, abundant sunshine, plain below 900 meters above sea level, deep soil layer, loose texture and fertile soil. Jujube seedlings are not alkali-tolerant, so those who newly cultivate jujube trees should not be eager for success. The first choice should be to introduce fresh water to wash alkali, deepen the maturation of soil, increase the application of organic fertilizers, and deepen the cultivation to continuously increase the organic content of soil. Heavy clay and gravel soil should be excavated for soil replacement.
2. Soil preparation and base fertilizer application
Dwarf close planting is the basis of early high yield of jujube trees. It is to select short-growing (short-branched) varieties and take comprehensive measures to obtain high yield within 3 ~ 5 years after planting, so as to continuously improve the quality and yield on the premise of ensuring the healthy growth of trees. Therefore, soil preparation and fertilization are the first conditions for jujube trees to be short, dense, early and high-yielding.
Spring planting, comprehensive soil preparation in the late autumn of the previous year, ploughing 30 cm deep, and autumn planting in the early autumn. On the basis of comprehensive soil preparation, according to the designed plant row spacing, carry out hole-like soil preparation at the planting point with a square of 1 meter, pile the topsoil and raw soil separately, and lay 1 5-25 kg of broken crop straw at the bottom of the pit. Mix 20-30 kg of farm manure with the topsoil in each pit and fill it in the pit. Finally, cover the raw soil with/kloc-0. Adjust the relationship between water, fertilizer, gas and heat to maintain a stable environment conducive to the growth of jujube roots.
3. Planting method
3. 1 The selection of seedlings must use first-and second-class seedlings with pure varieties, strong growth, complete root system, no jujube diseases and insect pests, and firm healing between rootstocks and scions of grafted seedlings. First-class seedlings: height1.2m or more, ground diameter1.5cm or more, lateral roots > 2mm, 6-8 seedlings > 20cm, second-class seedlings: height > 0.9-1~/kloc-0.
3.2 The planting time should be later in spring, the best period is April 5-20, and autumn planting should be earlier, after defoliation1October 20 ~1month 5.
3.3 Fresh-keeping of seedlings The seedlings in this country must be transported to the Garden of Construction on the same day after being dug, and planted in heel in in time. It must not be exposed to the sun and the sun. Before the shipment, the seedlings in other places must be soaked in cow dung (50 kg of water and 13 kg of cow dung), and the phosphate fertilizer solution (50 kg of water and 10.5 kg of potassium dihydrogen phosphate and10 kg of clay). Before planting seedlings, soak them in (1 50 ~ 200 )×10-6abt rooting powder (1No.2) solution for 20 ~ 30 minutes or plant them after spraying roots.
3.4 Planting density Different varieties of dwarf dense planting are selected in different places, and the planting density is different. Generally, the density can be1/0 plants /667 square meters (2m× 3m), 134 plants /667 square meters (2.5m× 2.5m), 167 square meters.
3.5 Planting method Dig a planting pit with a length, width and depth of 50 cm square at the center of the dug pit. According to the procedure of "one burying, two stepping, three lifting seedlings and four steadiness", the seedling ends should be straight. The planting depth should be 3 ~ 5 cm deeper than the soil mark of the seedling diameter. After the jujube seedling is planted, the whole stem can be cut off by more than 0.8 ~1m, and the section should be tied tightly with plastic strips, smeared with clear oil and sealed with wax.
4. Soil, fertilizer and water management
4. 1 Irrigation Jujube seedlings must be irrigated on the same day after planting. After 7 ~10 days, irrigate the water for the second time, and then irrigate it according to the soil structure, temperature and air temperature.
4.2 Loosening and weeding In order to reduce water evaporation and nutrient consumption, loosing, supporting seedlings and weeding should be done in time after each irrigation in the growing season. After 3 ~ 4 years, chemical herbicides can also be used to weed, such as prometryn and diuron (individually using 200 grams of cutting agent and 40 kilograms of water to mix well), which can be sprayed on the surface before weeds sprout out in spring, and the weeding effect is very high.
4.3 In autumn or spring of the following year, when fertilizing and planting, according to the ratio of organic fertilizer10 ~15 kg and chemical fertilizer100 ~ 200 kg per plant, an annular ditch with a width of 30 cm and a depth of 30 cm each is opened at a distance of 30 cm from the trunk, and the fertilizer is applied evenly. After that, the annual fertilization rate will increase by 30% compared with the previous year. After jujube leaves, the concentration is: urea 0.4%, potassium dihydrogen phosphate 0.3%, potassium sulfate 0.5% aqueous solution. Spray it on the leaves of jujube trees in the sunny morning 10 or after 4 pm, and spray it evenly every 10 day/time.
Step 5: plastic trimming
The purpose of shaping and pruning is to adjust the operation and distribution of nutrients and water, so that young trees can bear fruit early and produce more lignified dates. When planting (grafting) is realized, the fruit will be borne in the same year, and the yield will gradually increase from the second year, the first > >
Question 9: Jujube trees have been in existence for three years, but they only blossom without bearing fruit. Why? This situation is because the growth of jujube trees is too strong, and nutrients are taken away by branches, so they can't sit still. It is suggested that the trunk should be cut once or twice with a sharp knife in the full flowering period of jujube tree to temporarily block the cortex and improve the nutritional level of the tree, which can improve the fruit setting rate. In addition, spraying 300 times of boric acid or borax at full flowering stage can also significantly improve the fruit setting rate.
Question 10: It's an autogenous jujube seedling. It's been three years, and the tree is growing well. Since last year, it has blossomed, but it just doesn't bear fruit. This year, many flowers have blossomed, but it doesn't bear fruit. Maybe it's not yet the year.