1. Check the survival rate in time. Check 20-25 days after grafting. If the scion is found to be shrinking, the buds are not bright green, and the scion and rootstock interface are not healed, they must be patched in time to avoid missed grafting.
2. In addition to sprouting. After grafting to survive, the sprouts of rootstocks and roots of jujube stocks continue to sprout. If they are not removed in time, they will cause fast growth of the rootstock and slow growth of the scions. Finally, the scions are gradually killed, even if they survive, the amount of growth is very small. Usually every 7-10 days to do a de-emergence, continuous 3-4 times, until the scion grows to 30-40 cm into the vigorous growth, the growth of the eel will stop.
3. Remove the tie. After the spring branch survives, do not release the tied matter prematurely so as not to cause the grafted seedlings to be scraped by the wind due to the poor growth of the interface. Generally, it is necessary to wait until the branch length of the scion reaches 30-50 cm, the scion is obviously thickened, and the growth of the anchorage is affected by the binding of the anchorage.
4. Standing pillars. In areas with large winds, in addition to using grafting methods such as splicing and cutting to prevent wind damage, it is also necessary to set up pillars for protection. The specific method is: when the new shoots grow to 25-30 centimeters, they are combined to release the tied objects and tied on the rootstocks. 1-2 pillars, pillar length 1-1.5 meters, tied height should be about 25 cm from the interface. Buds can be inserted in the soil next to the rootstock a pillar, and its lower end tied to the rootstock, and then the new shoots tied to the pillar.
5. New tips topping. After grafting, when the new shoot grows to 40-50 centimeters in length, it will be top-notched, which can control excessive growth and reduce wind damage. At the same time, it can promote the growth of seedling stems and increase early results.
6. Remove weed shrubs. Most wild jujube stocks grow in shrubs and weeds. If the weeds and shrubs are not cleaned in time after grafting, they will compete with grafted seedlings to compete for water, compete for nutrients, and affect the growth of grafted seedlings. Weed removal is usually done 1-2 times during the vigorous growth of weed shrubs.
7. Strengthen soil fertilizer management. Most of the growing areas of jujube in the hilly areas are in the sandstone layer of gneiss, and it is difficult for the roots to get in. This requires that the soil moisture is high during the rainy season, and the soil around the grafted jujube tree is matured by the agricultural tools. Conditions can be drilled at about 1.2 meters from the trunk to increase the thickness of the living soil. In addition, we should spray 2-3 times of foliar fertilizer on grafted jujube trees, and dry areas can be topdressed before heavy rains come. At the same time, the fish scale pit or level ditch will be repaired under the tree to preserve water and soil, creating good growth conditions for the growth of jujube trees.
8. Control pests and diseases. After grafting to survive, the young sprouted leaves are very young and susceptible to the harm of aphids, zaolong, beetles, and juvenile aphids. They eat up the leaves and stem tips, resulting in failure of grafting. Therefore, pest and disease prevention must be strengthened. 40% of Dimethoate Emulsion 800-1000 can be sprayed at an appropriate time to prevent and control maggots, dates, etc.; use 80% trichlorfon 1000 times liquid to prevent and control juvenile crickets. Prevention and treatment of chafers can use the adult's pseudo-dead nature, vibrate the branches, kill the landing adults, and can also use the phototaxis of the adults and use the black light to seduce them at night.
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