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Recirculatie snij-amaryllis ( Hippeastrum) in tweede teeltjaar (2014) : behoud plantgezondheid en voorkomen groeiremming bij hergebruik drainwater

By J.A.M. Kromwijk, P.H. van Baar, L. den Nijs, J. Overkleeft, C. Blok, B.A. Eveleens-Clark and M. Grootscholten


In the Netherlands most crops grown in greenhouses reuse drain water. However, in the cultivation of amaryllis cut flowers (Hippeastrum) little drainage water is being reused so far because of strong suspicions of inhibitory substances in the drainage water. To reduce the emission of nutrients to the environment an experiment was started on request of the amaryllis growers. In a greenhouse experiment drainage water of amaryllis was treated with advanced oxidation and reused. This was compared with the reuse of drainage water treated with an UV disinfector and a control treatment without the reuse of drainage water. In the first and second year of cultivation, there was no difference in production and no adverse effects were seen in crop growth. In this experiment the reuse of drainage water has been for a relatively short period for amaryllis cut flower cultivation. Therefore, the research will be continued for a third year of cultivation in 2015 with a financial contribution from amaryllis growers, the ‘Topsector Tuinbouw en Uitgangsmaterialen’ and the Product Board for Horticulture

Publisher: Wageningen UR Glastuinbouw
Year: 2015
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Provided by: NARCIS
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