1. In the cultivation of potted apple trees, it is necessary to choose large flowerpots to make them have enough space for root growth, and also choose soil mixed with field soil, humus soil and farm manure in a ratio of 6:2:2 to keep the soil loose, ventilated and well drained.

2. Pay attention to rational fertilization in potted apple tree cultivation techniques. Add nitrogen fertilizer in early spring to make them sprout new buds better. Apply phosphorus and potassium fertilizer at flowering and fruiting stage. Fertilizer is usually applied once a month. Pay attention to the dilution of fertilizer to provide sufficient nutrients for apple trees.

3. Cultivate potted apple trees and water them properly. Water should be poured once every 1 ~ 2 days in spring and autumn, and twice a day in summer to keep enough water. Don't water too much, it will lead to water accumulation and rotten roots.

4. Pay attention to the pruning of branches and leaves when cultivating. First of all, cut off the long branches and dense branches of the tree to make it loose and maintain a good plant shape. We should also cut off many branches, diseased branches and weak branches, so that the nutrition of the apple tree will not be consumed, which will promote its healthy growth.