Soil properties related to the dynamics of ammonia volatilization from urea applied to the surface of acidic soils R. J. StevensR. J. LaughlinD. J. Kilpatrick OriginalPaper Pages: 1 - 9
Review and simplification of calculations in15N tracer studies M. L. CabreraD. E. Kissel OriginalPaper Pages: 11 - 15
Sorption of labelled phosphate by a Vertisol and an Alfisol of the semi-arid zone of India K. L. SahrawatG. P. Warren OriginalPaper Pages: 17 - 25
Phosphorus management of a rice-wheat cropping system Jaspinder Singh KolarHarsharn Singh Grewal OriginalPaper Pages: 27 - 32
A microplot study of the fate of15N-labelled ammonium nitrate and urea applied at two rates to ryegrass in spring R. J. StevensR. J. Laughlin OriginalPaper Pages: 33 - 39
Uptake and apparent utilization of urea and ammonium nitrate in wheat seedlings D. P. BradleyM. A. MorganP. O'Toole OriginalPaper Pages: 41 - 49
Effect of ortho- and pyrophosphates on dissolution of Fe, Al, Si, Ca, and organic C in three soils R. J. XieA. F. MacKenzie OriginalPaper Pages: 51 - 58