questions: asking about the cultural practices of knol khol . 
 answers: advised him to select suitable varieties like white vienna, purple vienna etc. and treat the seeds with captan or captaf @ 2-3 gm./kg of seeds. apply urea 9 kg, ssp 35 kg, mop 13 kg per bigha at the time of last land preparation. top dress urea 9 kg after 30 days of transplanting seedling.