Most of the spring drought and less rain, germination bud irrigation effect is good. The amount of irrigation should be based on local weather, flood conditions, tree vigor, age, etc. Irrigation is preferably root-based, which promotes the development of the root system of the jujube tree, smooth flow of water, enhances the quality of the root system, promotes fibrous roots, roots, and roots, and increases root tube delivery nutrient capacity and metabolic frequency.
Fertilizer
In early spring, basal fertilizers were added and quick-effect fertilizers were applied in late spring. There are four methods for fertilizing jujube trees in spring, such as circular groove, radial groove, strip groove, and whole garden or tree plate. The annular furrow method is used to excavate an annular groove of 60 cm in depth and 30 to 40 cm in depth at the periphery of the crown, and the fertilizer is mixed with the topsoil and applied into the ditch. Radial channeling is performed at a distance of 1.5 meters from the trunk, and 4 to 8 channels are drilled radially outward. The depth of the channel is 20 to 40 centimeters in width and 30 to 40 centimeters in width. Fertilizer is mixed with topsoil and covered with soil. Strip groove method, in the tree line or between trees in the projection of the circumference of the tree crown dug depth 30 to 50 cm, width 30 to 40 cm, long depending on the size of the crown and the amount of fertilizer and the strip groove. This method saves labor. It can be used when there is insufficient fertilizer. The entire garden or tree tray is used to spread the fertilizer evenly throughout the garden or tree tray. Then the soil is ploughed and the depth of cultivation is 20-30 cm. Soil, and then level the land, do the tree plate.
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