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TitleEffect 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
Publication TypeJournal Article
Year of Publication1993
AuthorsPfiffner, L, Niggli, U, Velimirov, A, Boltzmann, L, Balzer, U, Balzer, F, Besson, JM
JournalActa Horticulturae
Start Page11
Keywordsanalytical methods, food preference tests, holistic quality methods, picture forming methods

In a long-term field trial in Therwil, Switzerland, the bio-dynamic, bio-organic and conventional farming systems were compared (DOC trial). The present paper focuses on long-term yield development and on product quality of beetroot. Due to the favourable climate and soil, beetroot yields were generally high. The yield of beetroot in both biological systems was about 75 % that of the conventional system, but the input of nitrogen and potassium was about 60 % lower.