Investigations on the nitrogen nutrition of plants G. W. HarmsenD. J. Lindenbergh OriginalPaper Pages: 1 - 29
The biological detoxication of 2: 4-dichlorophenoxyacetic acid in soil L. J. Audus OriginalPaper Pages: 31 - 36
Exploratory pot experiments on sensitiveness of different crops to sodium: A. Spinach J. J. Lehr OriginalPaper Pages: 37 - 48
Mineral nutrition in relation to the biochemistry and physiology of potatoes E. G. Mulder OriginalPaper Pages: 59 - 121