Organic Production of Seed Potatoes E4
Hospers, I. A. J. T. M.
Louis Bolk Institute, 3972 LA Driebergen
|Organic farming requires the use of
organically-produced planting material. For three years from 1993 to 1995, an on-farm
research project was conducted on 15 organic farms. Experiments with regard to the
development of specific tools were carried out. One of the major problems in seed potato
production is the fungal disease Rhizoctonia solani. An important preventive measure
against this disease is the use of planting material that is as free from R. solani as
possible. During the growing season, the undisturbed growth of the potato plant is
essential. However, a familiar problem in organic farming is that the mineralisation of
nitrogen starts too late to meet the needs of the seed potato crop. With regard to the
implementation of the measures described above, it was found that general rules and advice
are of limited value in organic-farming systems, as any results may greatly be influenced
by individual conditions.
Hospers, I. A.J. T. M. (1996): Optimalisering van de biologisch-dynamischeen ekologische pootgoedteelt - Optimization of bio-dynamic and ecologicalcultivation of seed potatoes. Louis Bolk Instituut/Proefstation voor deakkerbouw en de groenteteelt.