Filtering (IMAGE) American Society of Agronomy Caption Eluate recovered from reused litter microcosm after extraction with glass beads and sieving through cheese cloth. Credit: Caroline Plymel and Gregory Zock Credit Caroline Plymel and Gregory Zock Usage Restrictions For use with this story only 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.