Studies on the determination of available phosphorus in soils Luciano TombesiMaria Teresa Calé OriginalPaper Pages: 137 - 154
Periodic fluctuations of soil fertility, crop yields and of responses to fertilization effected by alternating periods of low or high rainfall F. van der Paauw OriginalPaper Pages: 155 - 182
Manganese content of mustard leaves in relation to iron and major nutrient supply P. C. DekockR. H. E. Inkson OriginalPaper Pages: 183 - 190
Effects of long-continued treatment on the mineral nitrogen content and mineralisable nitrogen of soil from selected plots of the Broadbalk experiment on continuous wheat, Rothamsted J. K. R. Gasser OriginalPaper Pages: 209 - 220
Accumulation of Cs and K and growth of bean plants in nutrient solution and soils H. NishitaD. DixonK. H. Larson OriginalPaper Pages: 221 - 242
Absorption of potassium and rubidium from the soil by corn roots John M. WalkerStanley A. Barber OriginalPaper Pages: 243 - 259
Fungal populations in the rhizosphere of peanut (Arachis hypogaea L.) A. S. Rao OriginalPaper Pages: 260 - 266
The quantitative influence of the rhizosphere on denitrification J. W. Woldendorp Letter To The Editors Pages: 267 - 270
The survival of nitrifying bacteria in the soil A. J. GarboskyN. Giambiagi OriginalPaper Pages: 271 - 278