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 104502
Title Climate, nitrogen and grass : research into the influence of light intensity, temperature, water supply and nitrogen on the production and chemical composition of grass
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door B. Deinum
Author(s) Deinum, B.
Publisher Wageningen : Veenman
Publication year 1966
Description 91 p ill
Notes Proefschrift Wageningen
Ook verschenen als handelsuitgave
Tutors Hart, Prof. Ir. M.L. 't
Graduation date 1966-12-02
Dissertation no. 404
Author abstract show abstract
The investigations referred to indoor and field experiments, carried out with Lolium perenne.

With an increasing light intensity yield of dry matter, the contents of dry matter, water-soluble carbohydrate and 'rest' (residue) increased; those of nitrate, crude protein, ash and crude fibre decreased.

A rising temperature caused some yield increase, dry matter content hardly changed, crude protein and water-soluble carbohydrate diminished and so sometimes did the ash content whereas crude fibre and 'rest' increased.

Water shortage decreased yield of dry matter and increased contents of dry matter, nitrate, crude protein and ash. Water-soluble carbohydrate, crude fibre and rest were usually reduced.

Nitrogen dressing stimulated yield of dry matter, nitrate, crude protein and ash, and sometimes the crude fibre. Contents of dry matter, water-soluble carbohydrate and 'rest' contents decreased.

Light and N both increased yield of dry matter, but counteracted each other in the chemical composition.

Crude fibre and 'rest' in fresh matter were positively correlated with water consumption per g fresh matter. Some informative experiments with Brachiaria ruziziensis gave similar results. It was suggested, therefore, that high temperature, and low nitrogen supply might by the chief explanation for the low nutritive value of grass in the tropics.

Online full textINTERNET
On paper FORUM ; STACKS ; NN08200,404
FORUM ; STACKS ; NN08202,404
Keyword(s) (cab) botany / plant nutrition / fertilizers / manures / fodder grasses
Categories Grassland Improvement / Fertilizers, Fertilizer Application
Publication type PhD thesis
Language English
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