2. Change the basin soil regularly and loosen the soil in time to ensure the porosity and permeability of the soil.

3. With the growth of citrus trees, replace large flowerpots every 2-4 years or so (before the dormancy period ends and the growth begins in spring), and comb the roots in the process of replacing flowerpots.

4. Prune according to the growth and fruiting habits of fruit trees. Commonly used trees are fan-shaped, cluster-shaped, vertical-branched, open and single-trunk.

5. It is necessary to pollinate fruit trees or collect exotic pollen for artificial pollination at flowering stage.