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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 104556
Title De toepassing van gedeelde stikstofgiften bij enkele zaadgewassen
show extra info.
door Eliza van Roon
Author(s) Roon, E. van
Publisher Wageningen : Ponsen & Looijen
Publication year 1959
Description 131 p ill
Series title Publicatie / Proefstation voor de Akker- en Weidebouw (6)
Notes Proefschrift Wageningen
Tutors Schuffelen, Prof. Dr. A.C.
Graduation date 1959-11-27
Dissertation no. 268
Author abstract show abstract
The influence was studied of split dressings of N on susceptibility to lodging, on yields of grain and straw and on seed quality of a number of seed crops: poppy (Papaver somniferum), spinach (Spinacia oleracea), radish (Raphanus sativus), caraway (Carum carvi), winter swede-like oilrape (Brassica napus var. biennis) and canary grass (Phalaris canariensis). The data on yield, lodging and quality were from field trials under normal management. The second application of N was just before flowering. Of the 6 seed crops, at least 3 (poppy, spinach, radish and sometimes caraway) increased in seed production. The other crops reacted either indifferently (caraway, winter swede-like oilrape) or always negatively (canary grass). Split dressings improved seed quality of poppy and radish. The commercial value of other crops was not affected. The effect on straw stiffness (lodging) of the crops concerned was not marked; only for poppy and to a lesser extent spinach and radish did split application provide some advantage. For poppy, spinach and radish seed N dressing could be delayed until plants were in full bloom.
Online full textINTERNET
On paper FORUM ; STACKS ; NN08202,268
FORUM ; STACKS ; NN06080,06
Keyword(s) (cab) nitrogen fertilizers / crop damage / mechanical damage / fire / byproducts / stems / fibres / straw
Categories Crops (General) / Fertilizers, Fertilizer Application
Publication type PhD thesis
Language Dutch; Flemish
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