Biodynamic Research References
1993
Pfiffner, L., Niggli, U., Velimirov, A., Boltzmann, L., Balzer, U., Balzer, F., & Besson, J. M.. (1993).
Effect of three farming systems (bio-dynamic, bio-organic, conventional) on yield and quality of beetroot (Beta vulgaris L. var. esculenta L.) in a seven year crop rotation.
Acta Horticulturae,
339, 11-32.