Nutrient Recirculation System (IMAGE) American Society for Horticultural Science Caption This is a nutrient recirculation system planted with test plants including canna Australia. Credit Photo courtesy of Yan Chen 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.