nutrient flow chart (IMAGE) Penn State Caption Environmental benefits of double cropping and manure injection can be achieved while maintaining and potentially reducing total farm-production costs Credit Heather Karsten, Penn State Usage Restrictions non commercial use only License Original 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.