Virginia Tech, Extension Service2019-08-082019-08-081948-06-14http://hdl.handle.net/10919/92984Multiple use drill experiment plot II-1. Treatment 10-12-4 TD.positive, 4 x 5 in.image/jpegIn CopyrightApplied ScienceAgricultureVirginia Extension - Project 10Multiple Use DrillFarm ImplementsFarm Operating EquipmentAgricultural EngineeringPhotographBiological Systems Engineering, Virginia Tech