Optimizing Sweetpotato Production (image) American Society for Horticultural Science Caption Field experiments and analyses showed that early planting and delaying harvesting practices can result in increased yields and profits for sweetpotato producers. Credit Photo courtesy of Don LaBonte. Usage Restrictions None 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.