1. Reasonable dense planting The optimum plant spacing of fast-growing and high-yielding jujube of Jinsi jujube was 2m4m, and a channel of about 1m was left between the rows, and the cross between plants was about 10cm. 2. Use high quality seedlings The high-quality seedlings are selected and their seedlings are 2 years old, with a base diameter of 1.2~1.5cm, seedling height of 1.2~1.5m, no pests and diseases, and complete root system. From 5 to 7 days before the seedlings are raised, the nursery fills with water so that the seedlings can absorb enough water to ensure the integrity of the root system and increase the survival rate. Fine soil preparation before Dingmiao, 60cm square planting point, apply organic fertilizer 5 ~ 10kg, calcium superphosphate 0.25kg, all buried in the planting hole buried in surface soil to improve soil fertility. With the seedlings, with the transport, with the planting, after planting irrigation water. Planted in the autumn, in the rhizosphere of the seedlings before winter, the soil is kept cold and protected. The diameter and height of the mound are both 40 cm. In the early April of the following year, when the local temperature reached 14 degrees, the mound was opened for routine management. 3. Strengthen water and fertilizer management (1) Seedling survival period The first year after planting was the seedling-sustaining period, and management measures were taken to increase water in the early stage and to supplement the fertilizer in the later stage. A total of 4 waters were poured throughout the year, from April 10 to 25, mid-May, mid-June and late October. In early August, fertilizer was applied once, and 0.05 kg of diammonium phosphate was applied. (2) Long-term crown expansion The 2nd to 3rd year after planting was the long-term and long-term of crown expansion. The method of fertilizing nitrogen in the early stage and increasing phosphorus in the later stage was used. Watering was conducted 3 times a year and 2 fertilizations were performed. In the first half of April, the buds were fertilized and watered once before growth. The plant was applied with 0.1 kg of diammonium phosphate. In late October, the jujube tree was poured over winter water before it was dormant. The annual spraying of 0.3% urea was 2~3 times and the tillage weeding was 3~5 times. . In the fourth year of entering the result period, it is necessary to pour in water and apply fruit fertilizer in time. A total of 3 waterings were conducted throughout the year and 2 fertilizations were applied. Namely: In early April, apply 7.5kg of organic fertilizer and 0.1kg of urea. Pour in water in the first half of June. Apply fruit fertilizer once in the fast-growing period in early July. Apply 0.1kg of diammonium phosphate in October. In the late late winter, the water was poured over the winter water once a year, and 4 times of foliar sprays were applied throughout the year, and weeding and weeding were performed 4 times. 4. Promote control and integration, and reasonably trim. (1) Colonization at the same time, dry cut, height 70cm, and cut off the 2 to 3 secondary branches under the incision. The shape of the tree adopts natural garden head shape. There are 4 to 5 main branches in the whole tree, scattered on the center trunk, and the tree height is controlled within 2.5m. In the first year of winter shearing, the main branches of the extension branch and the 1 to 2 date heads were selected to be 30 to 40 cm thick and short cuts, and 2 to 3 secondary branching branches under shearing were cut off. (2) When the two-year-old winter shear, the main branch of the jujube head to reach four can no longer cut and promote branches, but also can be seen in the spatial orientation of the use of sparse secondary branches plus double ring engraved method. When the number of main branches is not enough, it can continue to cut and promote branches. (3) When the three-year winter cut, light shear is the main factor. When the main branch date reached 4 to 5, it no longer cut and promote branches. Mainly sparse inner and outer branches and retracting branches. (4) In the fourth year, it is necessary to pay attention to the crown control. From late May to early June, summer cuts were carried out, except for the main branch, the extension of the date of the jujube, and all the rest were picked up. The intricate jujube heads that affect the illumination of the internal guilt are removed from the base, and at the same time, through the main girdling (opening), the crown is controlled by the crown and the crown and the control crown, and the crown is controlled within 3m. Within 2~2.2m. 5. Open a timely manner to improve the fruit setting rate. Close-grained jujube 4 years old when the stem diameter reaches 5cm can be opened. When the jujube hanging flowering accounted for 30~40% of the total number of buds is the best period of opening. The width of the open armor should be 0.6~0.8cm, in order to ensure the smooth healing of the mouth, the mouth should be painted 3 times with 50 times of aqueous phosphorothiophene. The first time, the edge should be opened and the drug should be applied. Afterwards, the drug should be applied every 7 days. Second, the armor was opened for 30 days to check the healing of the mouth. For the unhealed mouth, the edges of the new tissue were cut off. After the plastering, the plastic film was used to pack it tightly to promote healing. In addition, after opening, 10 to 15 mg of gibberellin should be sprayed twice, that is, one spray within two days after opening, and one spray after seven days, which can significantly increase the fruit setting rate. 6. Timely control of pests and diseases The pests and diseases harmful to the seedless jujube mainly include Juvenile Mosquitoes, Red Spider, Peach-musking-heart, Green-sunflower, Jujube and Jujube rust. From the germination stage to the leaf stage, it focuses on the prevention and control of jujube cockroach, jujube buzu, and green awn. It can spray 1 to 2 times of 40% methamidophos 1000 to 1500 times; from the beginning of May to the end of June, it can prevent and control the second generation. Green awning, can be sprayed 1 to 2 times 20% of the sweeping 2000 times liquid or 25% of the date worms cover 1500 times. From the beginning of July to the middle of August, sprayed 1 or 2 times of pyrethroid pesticides to control peach borer, spraying 15% of the broom net emulsion 2500 times liquid to control red spider. In the first half of July, mid-August, and early September, each fungicide was sprayed (200-300 times Bordeaux mixture and 50% carbendazim WP 1000 times, and 50% thiophanate-methyl WP was used 1,000 times). ) Prevention and treatment of jujube rust and fruit diseases.
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(3) Result period