Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 515528
Title Emissieloze tuinbouw: teeltwissel strategie : Paprika teelt September-Oktober 2016
Author(s) Blok, Chris; Leyh, Romain; Bustamante, Marco
Source Bleiswijk : Wageningen UR Greenhouse Horticulture (Rapport GTB 1429) - 38
Department(s) WUR GTB Gewasgezondheid
WUR GTB Algemeen
Publication type Research report
Publication year 2017
Abstract At the end of the cultivation period a considerable amount of nitrate and phosphate is still present in the water in slabs and in the irrigation system. To reduce the emission of this amount of nitrate and phosphate a strategy was developed to use the plant to use this nitrate and phosphate in the last few weeks of the cultivation period. This however should be done without affecting the production or quality of the lasts fruits to be harvested. The strategy consisted of a gradual decrease over the last five weeks of the cultivation of nitrate, EC and water quantity in the supply. The ammonium to nitrate level was increased to acidify the slabs and release eventual precipitated phosphate. Chloride was used to replace nitrate as anion in the supply to allow to maintain proper levels of cations, notably potassium, in the supply and slab.
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