Answer:
Loosening the soil and avoiding compaction, as well as providing good drainage, can help roots have enough space and air. Tilling or cultivating the soil can be helpful, but should be done carefully so as not to damage any existing roots. Adding compost to the soil can also improve its structure and aeration. However, adding too much fertilizer can lead to overgrowth of foliage at the expense of roots, so it should be used sparingly and in balance with other soil amendments.