A comparative study of the ability of organic nitrogenous compounds to serve as sole sources of nitrogen for the growth of plants E. G. Bollard OriginalPaper Pages: 153 - 166
Partial substitution of sodium for potassium in water cultures A. H. MontasirH. H. SharoubeemG. H. Sidrak OriginalPaper Pages: 181 - 194
Mutual shading as a factor limiting the yield response of rice to application of nitrogen, phosphorus and potassium fertilizers A. Tanaka OriginalPaper Pages: 201 - 210
The ecology of micro-organisms on, and the decomposition of, insect wings in the soil N. Okafor OriginalPaper Pages: 211 - 237
Studies on microbial antagonism in the establishment of clover pasture A. A. Holland OriginalPaper Pages: 238 - 248
The distribution and persistence of diazinon applied to plant and soil and its influence on rhizosphere and soil microflora H. B. GunnerB. M. ZuckermanRuth E. Longley OriginalPaper Pages: 249 - 264
Pathways of ions from soil into root according to diffusion models Hans Jenny OriginalPaper Pages: 265 - 289
Effect of divalent and other ions on potassium uptake by barley roots M. El NasharA. K. HelmyM. M. Elgabaly OriginalPaper Pages: 290 - 296
Indices of calcium availability and degree of dispersion in soils S. Shah SinghB. Rama Moorthy OriginalPaper Pages: 297 - 304
Photoelectric equipment for a quick determination of leaf areas W. H. Moelker Short Communication Pages: 305 - 308
Chlorosis in plants growing in latosolic soil A. W. MooreS. A. Adetunji Short Communication Pages: 309 - 312