Summary of work using the rotary ridger and herbicides in the potato crop (1966-1968) /
Pascal, J. A.,author.
Provan, I. H.,author.
Parker, J. D.,author.
National Institute of Agricultural Engineering (Great Britain).Scottish Station.
Unbound.
"SSN/39."--cover leaf.
"Not for publication."--stamped on cover leaf.
Report dated September 1969.
Includes bibliographical references (leaf 3).
Potatoes