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 525527
Title De invloed van onderzoek op de ontwikkeling van de teelt van uien en sjalotten
Author(s) Beekom, C.W.C. van
Source University. Promotor(en): S.J. Wellensiek. - 's-Gravenhage : Staatsdrukkerij - 132
Publication type Dissertation, internally prepared
Publication year 1952
Keyword(s) allium cepa - uien - allium ascalonicum - sjalotten - onions - shallots
Categories Root Vegetables
Abstract After having reviewed the international history of the genus Allium and the economic importance of the onion crop in the Netherlands the author described and compared the situations before and after a 12 years' period (1939-1951) of research on onions and shallots. In this period research was started on practical problems on choice of variety, manuring, cultural methods, control of diseases, and storage.
This period of 12 years saw an increase in productivity of 6% of the onion selections, an economy of N fertilizer and a yield increase of 2.5 % by correct rates of N. Labour and seed were saved and crop care was better by sowing in rows instead of broadcast.

There was much less infestation by yellow dwarf of the onion seed crop and shallot crop and onion maggot was under control. Storage losses were limited by preventing frost injury. Growing of onions from sets was entirely a result of research.

Finally prospects were outlined on choice of variety, mechanization and storage. Future activities of the Netherlands Onion Federation were forecast.
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