Plant root excretions in relation to the rhizosphere effect A. D. Rovira OriginalPaper Pages: 209 - 217
The effects of various soil treatments on the occurrence of marsh spot in peas and on manganese uptake and yield of oats and timothy S. G. Heintze OriginalPaper Pages: 218 - 236
On the effect of ferrous sulphate on the available manganese in the soil and the uptake of manganese by the plant II Else Boken OriginalPaper Pages: 237 - 252
Studies on the decomposition of amino acids in soils D. J. GreenwoodH. Lees OriginalPaper Pages: 253 - 268
Production and prevention of frenching of tobacco grown in the greenhouse Robert A. Steinberg OriginalPaper Pages: 281 - 289
The effect of levels of calcium sulphate on the yield and composition of a grass and clover pasture T. W. WalkerA. F. R. AdamsH. D. Orchiston OriginalPaper Pages: 290 - 300