The influence of soil properties on the effectiveness of phenylphosphorodiamidate (PPD) in reducing ammonia volatilization from surface applied urea Catherine J. Watson OriginalPaper Pages: 1 - 10
Effectiveness of the urease inhibitor NBPT (N-(n-butyl) thiophosphoric triamide) for improving the efficiency of urea for ryegrass production Catherine J. WatsonR. J. StevensR. J Laughlin OriginalPaper Pages: 11 - 15
The maximum yield potential of subterranean clover swards achieved from superphosphate applications is influenced by the maturity and the plant density of the swards M. D. A. Bolland OriginalPaper Pages: 17 - 31
Cultivation reduces fertilizer residual effectiveness and affects soil testing for available phosphorus M. D. A. BollandR. J. Gilkes OriginalPaper Pages: 33 - 46
Effects of mineral nitrogen andBradyrhizobium inoculation on growth and iron nutrition of groundnut K. L. SahrawatV. AnjaiahP. T. C. Nambiar OriginalPaper Pages: 47 - 52
Evaluation of problematic indigenous phosphate deposits for phosphoric acid manufacture M. Anwar-ul-HaqIshtiaq AhmadKhalid Mahmood OriginalPaper Pages: 53 - 56
Optimising P2O5 availability for fertilizer use, by direct treatment of apatite with hydrochloric or nitric acids K. TennakoneU. S. KetipearachchiU. Weragama OriginalPaper Pages: 63 - 66