Virginia Tech, Extension Service2019-08-082019-08-081948-04-22http://hdl.handle.net/10919/92902Close-up of TVA fertilizer placement machine. Note knife shape of opener shank.positive, 4 x 5 in.image/jpegIn CopyrightApplied ScienceAgricultureVirginia Extension - Project 10Pasture Fertilizing EquipmentFarm ImplementsFarm Operating EquipmentAgricultural EngineeringPhotographBiological Systems Engineering, Virginia Tech