NEW DELHI: The government will convert 90,000 kms of country's national highways into green corridors , for which it is planning to create at least 1,000 contractors responsible for planting trees."We have taken a decision that one per cent of cost in construction is for tree plantation and other things. We are going to create 1,000 contractors in the country. They will have their own nurseries. They will plant new trees and create a green area on national highways," Road Transport & Highways Minister Nitin Gadkari has said.He said if the cost of road construction comes to around Rs 1 lakh crore, then Rs 1,000 crore will go for plantation."Planting trees in any particular area will depend on the soil suitability, besides climate and success stories. Konkan in Maharashtra is famous for Alphanso, we can plant it there. In Chhattisgarh we can have tamarind. Somewhere in between the road lengths we can have flowers like roses," he said.Gadkari, who also heads the Shipping Ministry , said that besides planting trees, the government is against felling of trees and a technology was being imported from Canada for transplantations.The new green policy, he explained, will pave way for creation of employment as well as contribute towards the economic growth of the country.India's road network of 33 lakh kms is the second largest in the world and consists of 92,851 kms of National Highways, which constitute only 1.7 per cent of the road network but carry about 40 per cent of the total road traffic.