Lightly aerate the soil by shallow digging before sowing carrots or sow them raised bed of 10 to 20cm height and 1-1.2m width to facilitate weeding, thinning, and to limit soil borne diseases. In addition, this will allow easier penetration by the carrot root and will also improve water holding capacity.
Nutrient requirements of carrots are particularly high for potassium (100 kg/ha), medium for nitrogen (50kg/ha) and phosphorus (50 kg/ha). Carrots are sensitive to high Cl concentrations and more susceptible to diseases at very high soil pH. Liming is recommended when pH is below 5.5. Well-decomposed organic manures are beneficial when applied moderately (20-25 t/ha). Fresh organic matter such as farmyard manure or from a leguminous crop, can result in forked roots, which are difficult to clean and to market.