Agriculture (IMAGE) Helmholtz Association Caption The agriculture is one of the main sources for the greenhouse gas N2O which results from the excessive use of nitrogenous nutrients. Credit Source: André Künzelmann/UFZ Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.