Library Catalogue

Library Catalogue

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    Union Catalogue of Agricultural Libraries in the Netherlands

    The WUR Library Catalogue contains bibliographic data on books and periodicals held by the libraries of Wageningen University and Research Centre and some 15 associated libraries. Holding data are added to each record.

    Subjects covered include Agrotechnology, Food and Food Production, Plant and Animal Sciences, Soil Science, Geo-information, Landscape and Spatial Planning, Water and Climate, Ecosystem Studies, Economics and Society.

    The joint collections of the participating libraries cover a substantial part of the internationally available scientific literature in these disciplines.

    As far as Dutch scientific literature in these fields is concerned, coverage can be considered near 100%, including much of the so-called "grey literature".

    All titles are entered in their original language. Keywords are added to facilitate subject searching.

    The database is updated every day and now contains over 830.000 records.

Record number 104517
Title Over de optimale stikstofvoeding van granen
show extra info.
door K. Dilz
Author(s) Dilz, K.
Publisher Wageningen : [s.n.]
Publication year 1964
Description 124 p ill
Series title Verslagen Landbouwkundige Onderzoekingen (641)
Notes Proefschrift Wageningen  show all notes
Ook verschenen als: Verslagen van landbouwkundige onderzoekingen ; 641
Ook verschenen als handelsuitgave
ISBN 9022001024
Tutors Schuffelen, Prof. Dr. A.C.
Graduation date 1964-04-24
Dissertation no. 361
Author abstract show abstract
Oats grown in culture solution showed an 'active' mineral uptake, which after ripening of the panicles benefited the newly formed tillers only. Ripening of the plants after interrupting nutrient supply depended on the stage of floral development. The longevity of a cereal was governed by the demand for assimilates by the inflorescences from the assimilating organs and the continuous supply of nutrients to these organs. Further experiments yielded the postulate that N supplied to a given organ led to protein synthesis, enabling this organ to accumulate and retain assimilates and withstand the drain on assimilates imposed by younger organs.

Distribution and redistribution of dry matter and 15N-labelled N over different plant parts and the effect of environment on nitrogen utilization and redistribution was studied.

Pot trials and concurrent field experiments with ample and continuous supply of N showed that maximum yield was attained with the same yield composition, pattern of N uptake and the same dry matter production per unit N uptake. At maximum yield, as a basis for comparison, N uptake by cereals in the field was 120- 150 kg N per ha, for Mitscherlich pots 1800-3000 mg N per pot. In most pot trials N level was far below that of field experiments.

Online full textINTERNET
On paper FORUM ; STACKS ; NN08200,361
FORUM ; STACKS ; NN08202,361
Keyword(s) (cab) botany / cereals / food crops / plant nutrition / fertilizers / manures
Categories Cereals / Soil Fertility / Fertilizers, Fertilizer Application
Publication type PhD thesis
Language Dutch; Flemish
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