Less-intensive integrated farming systems for arable crop production and environmental protection /
Jordan, V. W. L.
Hutcheon, J. A.
Fertiliser Society.
Peterborough : Fertiliser Society,
c1993.
"Paper read at the international conference in Cambridge on 8-9 December 1993"--title-page.
Includes bibliographical references.
Sustainable agriculture
Agricultural productivity
Farm management
Agriculture