First, the whole garden general method first applies fertilizer to the orchard ground, and then combines orchard ploughing or winter deep cultivating, turning fertilizer into 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.
Second, the tree plate range of fertilization fertilizer is more concentrated in the area of ​​the tree plate, after fertilization also deep cultivator, the fertilizer turned 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.
Third, the ring groove fertilization method According to the breadth of the extension of the roots of fruit trees, in the outer edge of the canopy dig a deep ditch 40-60 cm wide and 40 cm. The fertilizer is then applied to the ditch and covered 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.
Fourth, the radial groove fertilization method to the trunk as the center, radially outside the canopy evenly dig 5-6 shallow ditch, shallow depth, to the crown at the ground projection depth of 20-30 cm, then applied fertilizer and cover soil. This method is suitable for top-dressing orchards.
V. Acupuncture or injecting fertilizing method Acupuncture points are used to dig a number of 30-60 cm deep soil caves around the crown to apply the fertilizer into the caverns. The injection fertilization method is to drill a hole in the tree tray with a dirt drill around the trunk, and the depth is 50 cm. About the right, inject a good fertilizer solution into the hole. The above two methods are suitable for arid orchard areas or densely planted orchards, with liquid fertilizers as the main components.
Sixth, row fertilization method in the orchard along the direction of fruit trees, each row opened a width of 50 cm deep and about 40 cm long ditch, the fertilizer applied to the ditch. This method is suitable for large-scale orchard selection and can be used for mechanized operations.
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