Question: asking about cultural practices of potato
Answer: recommended to farmer that 
seed rate - 7-8 kg per kotha
seed treatment- treat the seed with indofil m-45 @ 3 g per kg seed for fungal infection
spacing- 20 cm x 45 cm
aphids- aphids can be controlled by spraying  rogor or dimethoate 30 ec 2 ml/lit.
blight- can be controlled by spraying indofil m-45 @ 2 g per lit of water