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 318724
Title Supplementary nitrogen in leeks based on crop nitrogen status
Author(s) Booij, R.; Meurs, E.J.J.
Source Acta Horticulturae 571 (2002). - ISSN 0567-7572 - p. 155 - 161.
Department(s) PRI Crop and Production Ecology
Publication type Refereed Article in a scientific journal
Publication year 2002
Keyword(s) nitrogen - leeks
Abstract From a number of basic relationships between several crop ecological components (Booij et al., 1996a) a system was developed for giving supplementary nitrogen application in leeks, that was based on the measurement of light interception. A description of the approach is given and a comparison is made with existing systems for supplementary nitrogen application. A comparison was made for four aspects: nitrogen input, yield, quality and residual mineral soil nitrogen. The system based on the measurement of light interception performed in general as well as a system that was based on the determination of soil mineral nitrogen. However, the system based on the measurement of light interception is easier to use and provides a recommendation instantaneously. For both systems yield and quality were the same as for the standard recommendation but nitrogen input was less and residual mineral soil nitrogen was reduced.
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