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Anonymous users2024-02-09The root system has been damaged, there is not enough nutrients to supply the leaves, it can only fall, grape grafting technology and grafting time: grafting affinity is good, not only manifested in the good healing of the joint, but also manifested in a good impact on the scion variety, so that the excellent traits of the scion variety are perfectly expressed, not premature aging after grafting, and the grapes have a long life span using young branches and buds grafting, not only the scion is provincial, the survival rate is high, the operation is convenient, the grafting time is long, and the unsurvived can be re-grafted, especially the high grafting of large trees is more ideal.
1. Choose rootstocks with strong growth and intact leaves. After the grapes are harvested, pre-grafting fertilizer and water management is carried out. In case of dry weather, it is necessary to water thoroughly in advance.
2. Select the robust branches close to the base, high degree of lignification, and full bud body as scion. Scion is best picked on the spot, such as long-distance transportation, must do a good job of moisturizing, and soak in clean water for a day and night.
3. The grafting part of the trellis grape is between 30 130 cm, each plant is grafted with 10 15 bud branches, and the current year's strong branches are selected at an interval of 20 30 cm on the main vine, and grafted at a distance of 5 10 cm from the base.
4. When grafting, first cut off the petiole of the scion from the base, cut off 1 2 from the back of the bud body, the cutting surface should be smooth, and then take the bud body as the center, cut 2 cm on both sides, stack it on the rootstock in the opposite direction, cut one at each end of the bud branch with a quick knife, and then take off the bud branch, cut off the tissue between the two channels, resulting in a gap consistent with the size of the bud branch, align the bud branch with the cambium layer, and finally tie it tightly with plastic film tape.
After the moon grapes fall leaves, the grafting wound has been completely healed, and the binding can be removed, leaving 2 cm of cutting at the grafting site, and thinning the rootstock branches that have not been grafted.
After 7 days of grafting, check whether it is alive, and those that do not survive can be re-grafted, and the sprouts can be germinated about 15 days after grafting. The secondary shoots (sprouting tillers) drawn up and down the grafted site consume a lot of nutrients, which is not conducive to the growth of grafted buds, and should be erased as appropriate. If the interface binding does not affect the growth of the branch, it is not necessary to lift it, but the film seal should be cut in time to facilitate the shade of the new shoots.
At the same time, it is necessary to erect pillars to lead section by section, strengthen fertilizer and water management and pest control. The tall grafting of large trees can be used to graft early, medium and late maturing varieties at the same time, but each variety should be marked well to avoid mistakes when picking scion. The management of grafted seedlings is one of the main factors affecting the survival rate of grape grafting, and the management is timely and in place, and the survival rate is high, otherwise the survival rate is low.
In addition to normal plastic pruning, topping and shelf, fertilizer and water management, and pest control, germination treatment after grafting, timely removal of binding belts, checking survival rate, and timely replenishment are indispensable measures to improve the survival rate of grafting.
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Anonymous users2024-02-08If you're dead, fill in the soil so you can still live.
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Anonymous users2024-02-07Grapes can be transplanted to life after they have grown leaves.
The best season is in autumn, when the soil temperature is not very low, and the temperature is just right for the seedlings to grow.
The right temperature can make its roots repair, because it is easy to damage its roots in the process of transplanting, so it takes a certain amount of time to repair, although the weather is warm in spring, but the temperature of the soil has not yet risen, which is very bad for the growth of grape seedlings, and the survival rate will also decrease.
When planting, we should also pay attention to the planting density, after digging the planting, the size of the planting ditch is not defeated to let the seedlings have enough space to grow. After planting, the fertilizer and the soil are fully and evenly mixed for backfilling, and the backfill should be filled while stepping on the solid.
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Anonymous users2024-02-06Summary. Trim like this:
First, we must pay attention to the place where the scissors are cut away from the bud eye, if it is too close, it will affect the growth and development of the bud eye in the next year. Then we need to pay attention to the number of buds left according to the length of the treetops. 2 buds on short tips, choose full buds.
How to prune the branches of grapes that do not bear fruit.
Pruning like this: First, we must pay attention to the place where the scissors are cut away from the bud eye, if it is too close, it will affect the growth and development of the bud eye in the next year. Then we need to pay attention to the number of buds left according to the length of the treetops.
2 buds on short tips, choose full buds.
Second, the so-called shrinkage is to selectively prune, for some old vines for the work that must be carried out. Because old trees have more branches and a very large amount of nutrients, the old trees lose a lot during the dormant period in winter, so we need to prune according to the state of the old trees. If it is a weak branch for many years, we should cut off the weak branch and leave the strong branch for breeding.
And if it's a strong branch, then we can do it the other way around.
Third, sparse pruning, as the name suggests, is roughly to prune, rough pruning has a principle, that is, six pruning six do not prune, cut off the weak branches to leave strong branches, cut off the incomplete to leave the complete, cut off the far branches to leave the near branches, cut off the double branches to leave a single branch, cut off the stunted ones to leave the complete development, cut off the old branches to leave new branches. Firmly implement the principle of six cuts and six non-prunings, and I believe that our vines will grow very well. Of course, no matter which way we prune the branches, the things we need to pay attention to are the same.
There are also four things to pay attention to in vine pruning, the first is to look. We need to observe the state of the tree before pruning, the growth of branches and leaves, so as to roughly determine our pruning plan.
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Anonymous users2024-02-05The grape seedlings from cuttings do not take root and do not grow after transplanting for one month, and can only be re-cuttings with new branches.
And do a good job of soil disinfection and insect control.
Grape cuttings propagation technology
1. Cuttings collection.
The collection of cuttings is generally in autumn after the leaves fall to before the freeze, combined with winter pruning, select fully mature, robust and full annual branches, the buds are full, free of diseases and pests, and the diameter is to. Pay attention to cut off immature branches, and spray stone sulfur mixture for disinfection after collection.
2. Nursery selection.
Choose sandy soil with convenient transportation, close to water sources, flat terrain, leeward and sunny, easy drainage, deep soil layer, and soil pH value to.
3. Germination. Because it is difficult to root directly from cuttings and the survival rate is low, it is necessary to soak with rooting powder solution first, the base of the cuttings is downward, the soaking time is 2 hours, and the soaking depth is 3cm. Or you can also use one-thousandth of the rooting powder solution to dip it quickly, pay attention to the top of the cuttings can not touch the medicine, otherwise it will inhibit growth.
4. Cuttings. After the previous preparations are done, you can wait for cuttings, generally at the surface temperature of 15, around the end of April, the east and west ridges. Insert 2 rows per ridge, plant spacing 10 to 15cm, top bud facing up, and fill with enough water at one time after insertion.
5. Management after cuttings.
After cuttings, water enough at one time, generally about 20 days can produce full buds, each plant leaves a strong shoot, in order to ensure that the nutrients are concentrated and promote growth.
In general, cuttings are one of the main methods of grape propagation, which has the advantages of simplicity, high survival coefficient and low cost, and the fact that some of the original advantages of grape varieties can be maintained. Of course, cuttings are not without drawbacks, so in the actual production and application, it is necessary to combine the characteristics of grape varieties, planting environment and other factors to choose the appropriate propagation method.
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