High soil temperature
Carrots affected by high soil temperatures fail to emerge.
Emergence of carrots is best in light soils such as sandy loam. Maintain uniform soil moisture at seed
depth until seedlings emerge. Avoid planting during high temperatures and keep soil as cool as possible
when it is warm. Be sure seeds are not planted too deep. Protect soil surface from rain or sprinklers.
Avoid overwatering and provide good drainage.