In order to ensure that the jujube can grow normally and obtain high yield, a series of soil management and fertilization should be performed on the jujube garden to meet the requirements of the jujube tree for large amounts of nitrogen, phosphorus and potassium elements and trace elements such as iron, manganese and zinc.
1, soil management
For sticky soils, it is recommended to apply more farmyard fertilizer and less fertilizer. Saplings are planted with green manure in the autumn, and the flowering period is overturned to increase soil organic matter. In the growing season, weeds must be removed promptly, and at the same time, remove the useless root seedlings in the jujube garden to avoid unnecessary consumption of nutrients. The winter jujube tree nutrition belt should be excavated in depth, especially in the root canopy area under the canopy, to enhance the permeability of the soil. Sex, improve the physicochemical properties of the soil and excavate overwintering pests, allowing them to freeze and die in cold weather.
2, fertilization
(1) Base fertilizer
Fertilization in autumn and winter is dominated by organic fertilizers. Generally, 50 kg of basal fertilization is applied to each tree, and 0.5-1.0 kg of calcium, magnesium and phosphate fertilizers are added.
(2) Dressing
The top-dressing soil of jujube orchard was dominated by three stages: budding stage, fruit setting stage, and fruit expansion stage. Top dressing was performed 3 times, and compound fertilizer or compound fertilizer was applied in March, May, and July respectively. Followed by 0.15-0.3 kilograms, the results of each tree topdressing each time 0.5-1.0 kg.
In the management of jujube tree growing season, foliar spray fertilizer can be used in combination with pest control, and foliar spray can also be applied separately. From mid-March to mid-July, 0.3% potassium dihydrogen phosphate solution and 0.5% urea can be used. The solution was applied to the leaves 2-3 times.
3, water management
Drought in winter and spring should be timely irrigation. The first and second top dressings should be combined with irrigation. During the rainy season, field work should be strengthened on the low-lying fields, and the side ditch, waist ditch, and furrows should be carefully cleaned so that the gutters can communicate and the water can be discharged in time.
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