The production of copper, zinc and molybdenum deficiencies in crop plants grown in sand culture with special reference to some effects of water supply and seed reserves E. J. HewittE. W. Bolle-JonesPeggy Miles OriginalPaper Pages: 205 - 222
The removal of plant roots from soil for the estimation of their phoshate content R. Scott RussellS. N. Adams OriginalPaper Pages: 223 - 225
Manuring, plant production and the chemical composition of the plant F. Steenbjerg OriginalPaper Pages: 226 - 242
The phosphate status of garden soils in relation to soil pH A. H. Cornfield OriginalPaper Pages: 243 - 245
