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 104229
Title A physical theory on placement of fertilizers
show extra info.
door Cornelis Teunis de Wit
Author(s) Wit, C.T. de
Publisher 's-Gravenhage : Staatsdrukkerij
Publication year 1953
Description 71 p
Notes Proefschrift Wageningen
Ook verschenen als handelsuitgave
Tutors Wijk, Prof. Dr. W.R. van ; Schuffelen, Prof. Dr. A.C.
Graduation date 1953-07-10
Dissertation no. 182
Author abstract show abstract
A theory was developed enabling calculation of the effect of any placement method of fertilizer on yield if the effect of one method is known.

This theory was based on the following established facts. The reactions between soil and fertilizer rate are the same for broadcasting and placement methods if the concentration of fertilizer is the same. A definite relation exists between yield and uptake of the nutrient, which is in general independent of the method of placement. As an approximation, the ratio between the increases in nutrient uptake with two methods of application depends only on the ratio of the volumes of soil fertilized to the same concentration.

Online full textINTERNET
On paper FORUM ; STACKS ; 294D19
FORUM ; STACKS ; NN08202,182
Keyword(s) (cab) application methods / fertilizers / absorption
Categories Fertilizers, Fertilizer Application
Publication type PhD thesis
Language English
About cum laude graduation (with distinction)
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