Seeder (1 of 2) (image) Penn State Share Print E-Mail Caption The multipurpose cover crop seeder prototype, designed and built by Penn State agricultural scientists, could save farmers $10 to $20 an acre by performing two to three operations at once. The seeder scores the soil, plants seed, adds herbicides and sprays fertilizer in a single trip. Credit Patrick Mansell, Penn State Usage Restrictions non commercial use only 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.