The roots of vegetable plants are unlikely to grow effectively in hard soil.
If you carry out cultivation work to prepare soil that is full of oxygen and nutrients, planted vegetable crops will freely grow.
Cultivation work performed at the beginning of a season is essential since it revitalizes the soil, which will have become exhausted from having its nutrients absorbed by plants the previous season.
By cultivating the soil while dispersing fertilizer and soil-amending materials, the fertilizer and soil-amending materials will be effectively mixed into the soil. The soil in your revitalized field will then be light, loose, and ready for another season.

Tilling the soil to a significant depth will also expand the extent to which roots can grow and allow more nutrients in the soil to be absorbed. The process of cultivation is effective for adjusting the supply of nutrients and bringing nu-trients that have percolated deeply down into the soil back to the surface.