(1) Soil preparation and planting

East-west ditching planting, with ditch depth of 0. 1-0. 15m, ditch width of 0.5m in the early stage, and 1m after high-yield years. Dig a pit of 0.8×0.8×0.8 m per plant, fill it with decomposed organic fertilizer and 0.6 m of loose soil, and then cover it with 0.2 m of loose soil ... Be careful not to bury the saplings too deep or too shallow when planting, and generally bury the base. Planting should be upright and firm, and the line should be straight, which is conducive to future production management.

(2) Soil, fertilizer and water management

Last autumn, the nursery was deeply ploughed by 30 cm, raked flat and filled with winter water. Before spring sowing, apply 4000 ~ 5000 kilograms of farm manure, 25 kilograms of compound fertilizer and 25 kilograms of nitrogen fertilizer per mu. After applying base fertilizer, make a border.

(3) shaping and pruning

Jujube seedlings have developed taproots and few lateral roots. In order to promote the growth of lateral roots, when the height of seedlings is about 15cm, a root-cutting shovel is inserted at an oblique angle of 30 degrees from one side of seedlings, and the main roots are cut off at a depth of 15cm. When the height of the seedling exceeds 20cm, the branches on the main stem within 65438+/-00cm from the ground are cut off, so that the rootstock can grow uniaxially for grafting; When the seedling height is 60cm, the terminal bud of jujube can be removed, which can inhibit the growth, promote the stout stem and improve the grafting survival rate.

From late March to early April in spring, select the primary branch or secondary branch on the top branch of 1 year-old jujube tree with strong growth, full buds, long internodes and no pests and diseases in scion multiplication nursery or high-quality jujube tree varieties, and the roughness is not less than 0. 6cm。 After the scion is collected, it is easy to leave a single bud, cut it according to the length of 5 ~ 6 cm and seal it with wax immediately (not more than one day). The method is as follows: use glassware or enamel washbasin to heat and melt paraffin, keep the temperature at 95℃ ~ 100℃, put the top of the scion with appropriate length down, dip it in wax solution at high speed, and then turn the other end upside down.

Cut the lower end of the wax-sealed scion into a wedge shape, the outer side is thicker than the inner side, the bud is thicker, the section is generally 2 ~ 3 cm long, and the section should be smooth. Cut the rootstock at the root close to the ground, cut a longitudinal cut of 2 ~ 3 cm in the middle of the rootstock, gently insert the scion along the cut, so that the cambium on both sides is aligned, and the top is exposed by 0.5 cm. Wrap the joint tightly with plastic strips from below without leakage. Check the scion about 8 ~ 15 days after grafting. The branches are bright and the buds are full, indicating that they have survived, otherwise they should be replanted in time. Grafting personnel should be trained to ensure that the survival rate is above 95%.

(4) Pest control

Jujube trees are prone to jujube gall midge and red spider, and jujube gall midge can be controlled with 30% Simagou 2000 times solution or 50% Kesuda EC 1500 times solution. In July and August, 15% Saozuming 1500 ~ 3000 times solution or 5% Bafenling 1500 ~ 2000 times solution can be used to control red spider; 10. Before the adults lay eggs, control the big green dust particles with 25% star killing solution 1000 times solution. Clear deciduous weeds in the field in time in autumn, and put rodenticide to prevent rats and rabbits from eating seedlings.

hope this helps