Re-utilization by perennial ryegrass (Lolium perenne L.) of labelled fertilizer sulphur incorporated in field-grown tops and roots of pasture plants added to soils K. M. GohP. E. H. Gregg OriginalPaper Pages: 73 - 85
Effects of fertilizer and weeding in no-tillage and tilled maize B. T. KangK. MoodyJ. O. Adesina OriginalPaper Pages: 87 - 93
Fertilizer regime and changes in the phosphate and potash status of a silty marine clay soil during 25 years J. Prummel OriginalPaper Pages: 95 - 101