Sulphur deficiency diagnosis using plant tissue analysis /
Blake-Kalff, Mechteld M. A.
Zhao, F. J.
McGrath, S. P.
International Fertiliser Society.
York : International Fertiliser Society,
c2002.
"Paper presented to The International Fertiliser Society at a conference in Cambridge, on 16-17 December 2002."
Includes bibliographical references.
Sulphur fertilizers
Soils