References
- K. C. Berger (1949). Boron in Soils and Crops. Advances in Agronomy, I., p. 321–348.
- W. E. Calton and J. W. Vail (1956). “Micro-nutrient Problems in Tanganyika”—Proceedings VIth International Congress of Soil Science, Paris.
- Dr. G. Wallace—formerly Plant Pathologist, Department of Agriculture, Tanganyika—private communication.
- Spurr, A. R. (1952). ‘Fluorescence in ultraviolet light in the study of boron deficiency in celery.’ Science, 116, 421–3.
- Perkins, H. J., and Aronoff, S. (1956). “Identification of the blue fluorescent compounds in boron deficient plants. Arch. Biochem. Biophys., 64, 506–7.