Two to three hand weedings and 1-2 very shallow hoeing should be done to remove weeds and to make the soil better aerated.
Earthing up plants one month after transplanting ensures good size of heads. At the time of earthing up, support the plants with soil to avoid toppling of the plant during head formation.
Irrigate immediately after transplanting of seedlings and subsequent irrigations are given at an interval of 10-15 days depending upon the season and soil conditions.
Avoid water stress from formation to maturity of the head. Avoid excess irrigation at crop maturity to prevent splitting of heads.