Sticks on cardboard (IMAGE) American Society of Agronomy Caption The wooden birch sticks after being in the capillary fringe experimental buckets for 118 days. The sticks were taken out of the soil, rinsed, dried, and weighed to determine how much decomposition had occurred. Credit J.C. Fiola 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.