SMS and Happy Seeder (image) International Maize and Wheat Improvement Center (CIMMYT) Share Print E-Mail Caption A combine harvester equipped with the Super Straw Management System, or Super SMS (left), works alongside a tractor fitted with a Happy Seeder. Credit © CIMMYT Usage Restrictions Image may only be used with appropriate caption or credit. Image may not be modified or altered. Share Print E-Mail 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.