"T" shaped bud grafted winter jujube technology

"T" shaped bud grafted winter jujube technology

1, budding period: generally June-July is a good period in the bud, the survival rate is high, development is more prosperous, but when the jujube tree enters dormancy, the new branch is low lignification, cold resistance is poor, in the northwest of China and Hebei In the northern mountainous areas of the province, the temperature in winter is low, the wind is high, and the mortality rate is high. It is advisable to graft in the early August-September period. The buds in late spring will help to survive the cold winter. 2. Selection of rootstocks: Seedlings of wild jujube (1 to 2 years old), roots, and wild jujubes should be used as rootstocks. 3, scion selection: in the disease-free, high yield, robust winter jujube tree on the stability. 4. Bud grafting method: Take buds to select the main buds at the base of the secondary branches, and the best buds for the development of the buds in the middle of the scion. The method of adopting triangular budding method is to use a sharp bud grafting knife to cut a knife at a depth of 3mm above the main bud to reach the xylem. Its length is determined by the rootstock and the thickness of the scion, generally 7-8mm, and then in the bud. On the side, each knife cut obliquely, so that the incision in the bud 10-13mm intersect, cut deep into the xylem, and then, in the bud below the microstrip xylem, cut through the transverse incision from bottom to top, in order to improve the survival rate, After the buds are cut, they are left on the panicle. After the rootstock interface is cut, the amount of xylem buds is taken along with the buds. According to the grafting period, the thinning of the skin can be carried out in June. With xylem. Open "T"-shaped interface is generally located 5-6cm away from the ground, selected smooth, vertical and horizontal cut a knife, deep woody, transverse cut 8-9mm, longitudinal cut 9-10mm. The buds are peeled off with the bud graft holder, the buds are quickly removed, and the buds are inserted into the “T” shaped mouth so that the upper part of the buds is connected to the upper part of the “T” shaped mouth and then tied with plastic strips with the petioles exposed. Shear anvil in order to ensure that there is enough water and nutrients supply buds, promote wound healing, (except for grafting in August-September), immediately after cutting the anvil in the upper part of the interface 8-10cm, grafting when the flower garden seedlings grafted If there are branches below it should also be removed. Check the survival condition and check it after 3 to 5 days. When the petioles touch and fall, the graft survives. If the petiole withered, it should be patched. After about 10 days, the buds will be germinated and the shoots will be drawn. At this time, attention should be paid to loosening them so as to avoid scars and wind blows. When the budding technique is 12-15cm, a stick is set up and tied to the anvil to prevent the wind from breaking. At the same time, it is necessary to promptly remove the sprouts on the rootstocks, and strengthen the management of fertilizers and water and prevent pests and diseases to ensure the robust growth of grafted seedlings.

Nuts can generally be divided into two types: one is seeds, such as sunflower seeds, pumpkin seeds, peanuts, etc.; the other is tree nuts, such as pistachios, hazelnuts, cashews, walnuts, pine nuts, walnuts, chestnuts, almonds. And the macadamia and pecans that have been very hot in the past two years. These nut foods contain more protein, calcium and a variety of vitamins, which can provide the body with a variety of nutrients needed by the brain and body.

In general, a nut is a closed fruit classification of a nutrient-covered woody or leathery hard shell. The skin is hard and contains one or more seeds. It includes two types of tree nuts and fruit seeds, walnuts, chestnuts, pistachios, almonds, etc., melon seeds, which belong to the fruit seed class.

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