What is the nectarine grafted?
Nectarine is grafted with peach or peach as rootstock, and the grafting method is as follows:
1, preparation work
Choose peach trees with pure varieties and not mixed, and take the branches of strong peach trees as scions. Take the upper peripheral branches without diseases and insect pests as scions. After the scion is taken down, it should be stored or transported in the sand. Choose saplings with a thickness of about 0.5 cm as rootstocks, and the height is required to be about 30 cm. Rootstocks should also be healthy seedlings without pests and diseases.
2. Grafting method
Bud grafting takes place in August. First, all the buds within 15 cm of the rootstock base are removed to avoid competing for the nutrition of grafted buds. Improve the survival rate. T-bud grafting. Make a T-cut on the rootstock, and the depth of the cut is to see the green layer. Take a knife from the scion, take the bud, then connect it to the incision of the rootstock, tie the incision and expose the bud. The cutting method is to directly cut the rootstock at two thirds of the cross section, about1.3cm.. Leave a few buds in the scion, cut the lower end into 2 cm facets, and cut the back into 1 cm facets, then insert the rootstock and align with the cambium. Just tie it up.
How to maintain nectarine after grafting
Grafting is very important, that is, preparing and raising households after grafting, which is the key work to determine the survival rate.
1. Maintenance management
The newly grafted buds have poor overwintering ability. If they are grafted in autumn, they can help overwinter without unbinding, and they can also be watered to keep warm and cold before winter. Cut the anvil in the spring and start to untie it. After cutting the stock, it will germinate, so these new buds should be removed in time to ensure the growth of grafted buds. Combination of watering and fertilization in summer. 20 kg of urea and 30 kg of phosphate fertilizer are applied to an acre of land, and aphids are mainly controlled in summer.
2. Seedling pruning
Graft shoots to grow plants, then remove the secondary buds at the base of the plants after autumn, and remove the shoots that continue to grow in September. Grafted seedlings are sparsely planted, the row spacing is widened, and it is easy to raise seedlings with soil. When the grafted seedlings grow to half a meter high, they will be pitted. After several branches, the main branch is left, the main branch is cored, and other branches are removed.
Structure and cutting method of nectarine
Short cut: the short cut of branches is called short cut, and the short cut of perennial branches is called retraction, which has a local promotion effect on the near cut branches and buds.
Drainage: completely draining branches from the base is called drainage. Conducive to flower bud differentiation, flower and fruit growth and development. It is often used to loosen over-dense branches and over-weak branches, and can be used to balance tree potential and adjust branch quantity.
Picking: cutting off the twigs at the top of the new shoots during the growing period is called coring. It can promote germination and enrichment, and is beneficial to the formation of flower buds. Often used to control competitive branches and long branches.
Twisting branches: in the early stage of lignification of new shoots, the angle of holding branches can be increased to slow down the growth and benefit the fruit. It is often used for the utilization and transformation of strong trees of young trees or early fruit trees. First twist the tip and slightly flatten the branches to slow down the growth and benefit the fruit. Mostly used for auxiliary branches.
Ring carving or eye injury: Ring carving is to carve a wound at the base of the growing branch to block the output of photosynthetic nutrients in the upper part, improve the nutrient storage level and promote flower bud differentiation. Usually used to support branches. Eye injury before germination, cutting off the upper part of the bud, also promotes bud germination, often used for bald branches.
The function of nectarine
1. Nectarine is rich in iron, which can supplement iron, promote red blood cell regeneration, enhance hematopoietic function and prevent iron deficiency anemia;
2. Nectarine is rich in vitamin C, which has strong antioxidant capacity, can scavenge free radicals, repair damaged cells, not only whiten and remove spots, lubricate the skin, but also enhance human immunity;
3. Nectarine contains cellulose, which can stimulate intestinal peristalsis, enhance satiety, and have the effect of relaxing bowels and losing weight.
Chinese medicine also believes that nectarine has the effects of nourishing yin, promoting fluid production, nourishing qi and blood, promoting blood circulation and removing blood stasis.