Effect of pH and organic compounds on nitrogen fixation by red clover E. G. MulderW. L. Van Veen OriginalPaper Pages: 91 - 113
The reaction of lucerne seedlings to high concentrations of manganese L. Dessureaux OriginalPaper Pages: 114 - 122
Cation-exchange capacity and pectin gradients in leek root segments W. M. CrookeA. H. KnightI. R. Macdonald OriginalPaper Pages: 123 - 127
The effect of ferrous sulphate on the yield and manganese uptake of oats on sandy soil fertilized with natural pyrolusite Else Boken OriginalPaper Pages: 128 - 136
The symbiotic performance of lupin bacteria under glasshouse and field conditions R. T. LangeC. A. Parker OriginalPaper Pages: 137 - 146
Influence on plant growth of the breakdown of organic phosphorus compounds by micro-organisms A. Szember OriginalPaper Pages: 147 - 158
Zur Gegenseitigen Umwandlung Von Calciumgebundener Phosphorsäure Und Aluminium- Und Eisen (3)-Gebundener Phosphorsäure Im Boden Werner Rathje OriginalPaper Pages: 159 - 165
Dynamik Der Stickstoffmineralisation Im Organischen Waldbodenmaterial H. Zöttl OriginalPaper Pages: 166 - 182