Draycott et al., 2003. CAB International, Wallingford, UK Document reference Draycott, A. P. Christenson, D. R., 2003. Nutrients for sugar beet production: Soil-Plant relationships. CAB International, Wallingford, UKWeb http://books.google.fr/books?id=acQ-QEanvCgCCitation key Draycott et al., 2003Datasheets Sugar beet rootsFodder beet roots
