First of all, the potting soil of the potted magnolia flowers should be neutral sandy soil, and the pots should be changed every two years, and some rotted organic fertilizers should be added as base fertilizers. Secondly, it needs to be trimmed once each year after flowering and after seeing buds. The trimming after flowering only needs to cut off the upper part of the flowering branch. After trimming, the wound must be sealed with tape to facilitate wound healing and prevent disease infection. Finally, when overwintering, plant the plants in pots together with the outdoor sunburst or indoor sunburst. If the room temperature is kept at about 10℃, it can also bloom 3 weeks in advance. Potted magnolias should also be treated with a flat tie, that is, after sprouting in April, as the new shoots grow, they should be tied at any time and tied into a curved posture to limit the height of the trunk.
In addition, we must strengthen water and fertilizer management. According to the growth rule of Magnolia, base fertilizer should be applied to the bottom of the pot. In April after flowering, nitrogen and phosphorus combined fertilizers should be applied 1-2 times. From June to August, fertilization combined with nitrogen and phosphorus should be applied again 2 to 3 times during pregnancy buds and present buds, and topdressing once more before flowering.
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