Virginia Tech, Extension Service2019-06-052019-06-051905-04-29http://hdl.handle.net/10919/89878Plot 5. Single ripper about April 1st. No disk. Nitrate of soda applied as July side dressing at rate of 150 pounds per acre. Note stand height. Compare with photo of Plot 20.positive, 5 x 7 in.image/jpegCreative Commons Public Domain Mark 1.0Applied ScienceAgricultureVirginia Extension - Project 10Stubble MulchErosion ControlSoil and Water ConservationApplied ScienceAgricultureAgricultural EngineeringVirginia Extension - Project 10Stubble MulchErosion ControlSoil and Water ConservationPhotograph