questions: asking about cultural practices of marigold 
 answers: recommended to farmer that
seed rate-120 g per bigha
variety-local types (orange & yellow)
fertilizer - urea-15 kg ssp-20 kg mop-10 kg per bigha 
spacing- 45 cm x 30 cm
pest and disease management
mealy bug and thrips: spray rogor @ 2 ml per lit of water 
leaf spot and root rot: spray saaf @ 2 g per lit of water