A worker with a can of fertilizer (IMAGE) Ural Federal University Caption A new type of fertilizer Credit Anastasia Mavrenkova / UrFU Usage Restrictions Photo may be freely used to illustrate this topic, but please credit the author of the image: UrFU / Anastasia Mavrenkova License Original 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.