Controlled seedbed traffic after ploughing or direct drilling, including zero traffic and traffic with reduced tyre pressures, on a sandy clay loam under winter barley, 1981-82 /
Campbell, D. J.(Duncan Joan),author.
Dickson, J. W.,B.Sc.,author.
Ball, Bruce(Soil scientist)author.
Scottish Institute of Agricultural Engineering.
"Not for publication."--on the title page.
"Scottish Institute of Agricultural Engineering."--at the head of the cover.
Report dated September 1983.
Includes bibliographical references (page 22).
Barley
Sandy soils
Agricultural machinery.