1. Whole garden general method: Fertilizer is first applied to the orchard ground, followed by ploughing in the orchard or deep cultivator in winter, turning the fertilizer into the soil. This method is mainly used for large-scale fertilization of mature fruit trees or densely planted orchards in mature orchard orchards with full roots. Most of the fertilizer is mainly coarse fat.
2. The scope of the tree plate: The fertilizer is spread more concentratedly in the area of ​​the tree plate. After the fertilization, it is also used for deep cultivating, turning the fertilizer into the soil. This method is suitable for young orchards, and has the advantage of being more concentrated than the whole garden general method fertilizer, generally using a combination of coarse fat and fine fertilizer, slow-effect and quick-effect combined fertilizer.
3. Ring groove fertilization method: According to the breadth of outward extension of the fruit tree roots, digging a deep ditch 40 to 60 cm wide and 40 cm wide at the outer edge of the crown. The fertilizer is then applied to the ditch to cover it with soil. This method is suitable for applying organic fertilizer to barley orchards, orchards and younger orchards with small canopies in winter or early spring.
4. Radial furrow fertilization method: Take the trunk as the center, dig out 5 to 6 shallow ridges radially outside the canopy, and make it shallow and deep inside. Use a tree crown 20 to 30 centimeters deep from the projection on the ground. Fertilize and cover soil immediately. This method is suitable for top-dressing orchards.
5. Acupuncture or injection fertilization method: The hole is applied by digging a number of soil depths of 30 to 60 centimeters around the crown to apply the fertilizer into the hole. The fertilization method is to drill a hole around the tree trunk with a dirt drill, and the depth is 50 cm. About the right, inject a good fertilizer into the hole. The above two methods are suitable for arid orchard areas or densely planted orchards, with liquid fertilizers as the main components.
6. Ditch fertilization method: In the orchard, follow the direction of the fruit trees, and open one long groove with a width of 50 cm and a depth of about 40 cm in each row, and apply the fertilizer into the ditch. This method is suitable for large-scale orchard selection and can be used for mechanized operations.
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