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 487852
Title De bodemgesteldheid van de IJpolders en een onderzoek naar het verband tussen de bodem en de suikerbietenopbrengst in de Haarlemmermeer en de IJpolders in het jaar 1949
Author(s) Gueray, A.R.
Source Wageningen University. Promotor(en): C.H. Edelman. - Utrecht : Oosthoek - 86
Department(s) Soil Survey Institute
Publication type Dissertation, internally prepared
Publication year 1951
Keyword(s) beta vulgaris - suikerbieten - bodemkarteringen - kaarten - landevaluatie - bodemgeschiktheid - oogsttoename - oogstverliezen - opbrengsten - nederland - noord-holland - haarlemmermeer - beta vulgaris - sugarbeet - soil surveys - maps - land evaluation - soil suitability - yield increases - yield losses - yields - netherlands - noord-holland - haarlemmermeer
Categories Soil Classification
Abstract A soil survey in the Y-polders was combined with studies of yield of sugarbeet on different soils. Subsoil differences were shown to be the most important factor. Topsoils in the Y-polders proved to be uniform in composition and to consists of young Ysselmere clay (underwater deposits) with a lutum (clay) content of 35-40%. The thickness of the clay layer proved to be very varied. Sands, peat, peat detritus, peaty silt were the materials of which the subsoil was built up through an intricate history of sedimentation. Therefore soils were classified on clay thickness and subsoil characteristics.

To test the agricultural value of this classification, yields of various soil types were compared in the polders and on some soils of the Haarlemmermeer. This data proved that high humus contents caused low contents of sugar. The influence of decalcified topsoils and cat-clay subsoils was not important in 1949 because of the weather. Coarse sandy subsoils and heavy layers had much influence; maximum yields were achieved on soils with 75 cm Y clay. A suitability scheme for sugar- beets was derived from the data.

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