Modelling water and nutrient uptake of crops grown in protected cultivation

P. de Willigen, M. Heinen

    Research output: Contribution to journalArticleAcademic

    2 Citations (Scopus)


    This paper presents results of model calculations on uptake of water and nutrients by a lettuce crop grown in a sand bed. Emphasis is on the effect of salt concentration (osmotic head) on water uptake. This effect was studied using a two-dimensional model of water and nutrient transport in and uptake from a rooting medium. The main conclusion is that under normal conditions as found in Dutch horticulture, osmotic effect on water uptake is not important, but that it depends on the distribution of salts with respect to that of the roots.
    Original languageEnglish
    Pages (from-to)227-236
    JournalActa Horticulturae
    Publication statusPublished - 1998
    EventSecond International Symposium on Models for Plant Growth, Environmental Control and Farm Management in Protected Cultivation - Wageningen
    Duration: 25 Aug 199728 Aug 1997


    • soil
    • electrical properties
    • electrical conductance
    • magnetic properties
    • liquids
    • absorption
    • models
    • research
    • computer simulation
    • simulation
    • simulation models
    • greenhouse horticulture


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