Seed Fertilizer In order to avoid fertilizer-burning seeds, the application depth of seed fertilizer should be 5-6 cm, and the horizontal distance (side distance) between seed fertilizer and seed should be appropriate, generally 3-5 cm. When topdressing topdressing, the roots of Chinese medicinal materials have been initially formed. If mechanical topdressing is used, rooting should be minimized. Fertilization should not be too deep and the lateral distance should be appropriate. Under normal circumstances, top-dressing, suitable for cultivation of narrow rows of Chinese herbal medicines such as Poria, Plantago and other top dressing depth of 6 to 8 cm is appropriate, lateral distance of 10 to 15 cm is appropriate; suitable for wide-row cultivation of Chinese herbal medicines For example, the depth of topdressing such as honeysuckle, yellow peony, etc. is preferably 8 to 12 cm, and the lateral distance is 10 to 15 cm. The base fertilizer is applied at a depth of 15 to 20 cm or more. Fertilizers can be applied to the surface first and then plowed into the soil, and the fertilizer can be applied to the furrow simultaneously with the ploughing operation.
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