Question: asking about cultivation practices of marigold
Answer: told him 
varieties -local types (orange & yellow), pusa narangi gainda, pusa basanthi gainda (iari varieties) and mdu 1 can be cultivated.soil 
well drained loamy soil is found suitable. the soil ph should be 7.0 to 7.5. saline and acidic soils are not suitable for cultivation.

seeds and sowing
the seeds are sown throughout the year. nursery is raised with 1.5 kg seeds/ha and the seedlings are transplanted after four weeks on one side of the ridge at 45 x 35 cm spacing. treat the seeds with azospirillum (200 g in 50 ml of rice gruel) before sowing.

irrigation
irrigation is done once in a week or as and when necessary. water stagnation should be avoided.