Magnesium deficiency in fruit trees on sandy soils and clay soils in Holland D. Mulder OriginalPaper Pages: 145 - 157
Copper contents and copper deficiency in Danish soil types F. SteenbjergElse Boken OriginalPaper Pages: 195 - 221
Des effets de l'épandage de nitrites sur des cultures en plein champ A. van den Hende OriginalPaper Pages: 223 - 230
The release of carbon dioxide from soils percolated with various organic materials H. LeesJ. W. Porteous OriginalPaper Pages: 231 - 241
Cation exchange properties of plant root surfaces D. E. WilliamsN. T. Coleman OriginalPaper Pages: 243 - 256
On the occurrence of copper in tropical soils J. G. VermaatG. J. Van Der Bie OriginalPaper Pages: 257 - 282