questions: asking that to make the soil free from soil borne diseases in case of nursery raisings for cauliflower, what he have to do ? 
 answers: suggested to drench the bed with 0.1 per cent solution of 'captan' so as to saturate the soil upto a depth of 10-15 centi metre to make the soil free from soil borne diseases in case of nursery raisings for cabbage.