by Ritchie G.S.P
Published in Plant and soil (01.04.1995)

by Ritchie, G.S.P.
Published in Advances in Agronomy (1994)

by Ritchie, G.S.P
Published in Communications in soil science and plant analysis (01.04.1988)

by Carr, S.J, Ritchie, G.S.P. (Western Australia Univ., Nedlands. Soil Science and Plant Nutrition), Porter, W.M. (Avon Agricultural Research Centre, Northam (Australia))
Published in Australian journal of agricultural research (1991)

by Ritchie, G.S.P, Sposito, G. (School of Agriculture, University of Western Australia, Nedlands, Western Australia 6009, Australia)
Year of Publication 1995

by Ritchie, G.S.P, Nelson, M.P, Whitten, M.G
Published in Communications in soil science and plant analysis (01.05.1988)

by Ritchie, G.S.P.
Published in Geoderma (01.08.1985)

by Cameron, R.S, Ritchie, G.S.P, Robson, A.D
Published in Soil Science Society of America journal (01.09.1986)

by Mann, S.S., Ritchie, G.S.P.
Published in Environmental pollution (1987) (1995)

by Loss, S.P., Robson, A.D., Ritchie, G.S.P.
Published in Annals of botany (01.07.1994)

by McLay C.D.A, Ritchie G.S.P, Cruse A, Porter W.M
Published in Australian journal of soil research (1994)

by Weaver, D.M., Ritchie, G.S.P.
Published in Environmental pollution (1987) (1994)

by Mann, S.S, Ritchie, G.S.P. (Western Australia Univ., Nedlands. Soil Science and Plant Nutrition)
Published in Australian journal of soil research (1994)

by McLaren, R.G. (Lincoln Univ., Canterbury (New Zealand). Dept. of Soil Science), Ritchie, G.S.P. (Western Australia Univ., Nedlands. Soil Science and Plant Nutrition)
Published in Australian journal of soil research (1993)

by McLay, C.D.A, Ritchie, G.S.P. (Western Australia Univ., Nedlands. Dept. of Soil Science), Porter, W.M. (Western Australian Dept. of Agriculture, Northam. Avon Districts Agricultural Centre)
Published in Australian journal of soil research (1994)

by Weaver, D.M., Ritchie, G.S.P.
Published in Environmental pollution (1987) (1994)

by Whitten, M.G, Ritchie, G.S.P. (Western Australia Univ., Nedlands. School of Agriculture)
Published in Australian journal of soil research (1991)

by Chairidchai P, Ritchie G.S.P
Published in Agronomy journal (01.03.1993)

by Ritchie, G.S.P, Dolling, P.J
Published in Australian journal of soil research (1985)

by Ritchie, G.S.P.
Published in Geoderma (1985)