Planting Depth (image) American Society of Agronomy Share Print E-Mail Caption Trying to get correct planting depth in organic no-till, seed to soil contact is one of the biggest challenges in the system. Credit Photo credit Amanda Wolfgeher. Usage Restrictions Please use with story 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.