The clod populations of some early potato soils in Pembrokeshire compared with those from a maincrop soil in Midlothian /
Campbell, D. J.(Duncan Joan),author.
National Institute of Agricultural Engineering (Great Britain).Scottish Station.
Unbound.
"Not for publication."--stamped on cover leaf.
Report dated September 1973.
"Restricted circulation (N.I.A.E. S.S. and N.I.A.E. staff only)."--cover leaf.
Includes bibliographical references (leaf 3).
Soil texture.
Soils