Field (IMAGE) University of Copenhagen - Faculty of Science Caption Landfarming works by distributing contaminated soil in a thin layer, which is then ploughed, fertilized and oxygenated every year to optimize conditions for bacteria to degrade hydrocarbons. Credit Photo: Anders Christian Vestergaard 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.