Urea
Urea is the most common nitrogenous fertilizer being used in the country. In India excessive use of urea is mainly noticed in states having strong irrigation network like Punjab, Haryana, Uttar Pradesh and Andhra Pradesh. Http://m.timesofindia.com/india/New-urea-policy-could-lead-to-its-excessive-use-impact-human-health/articleshow/47291207.cms