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 454600
Title The effect of different silicon fertilizers on the greenhouse cucumber production
Author(s) Winkel, A. van; Hofland-Zijlstra, J.D.; Blok, C.; Erstad-van der Vlugt, A.; Erstad, K.; Burg, C. van der
Source In: International Symposium on Growing Media and Soilless Cultivation, 16 May 2014, Leiden, The Netherlands. - Leuven : ISHS - ISBN 9789462610217 - p. 575 - 582.
Event Leuven : ISHS - ISBN 9789462610217 GroSci2013 International Symposium on Growing Media and Soilless Cultivation, Leiden, 2013-06-17/2013-06-21
DOI https://doi.org/10.17660/ActaHortic.2014.1034.73
Department(s) WUR GTB Gewasfysiologie Management en Model
GTB Gewasgez. Bodem en Water
Publication type Contribution in proceedings
Publication year 2014
Abstract The advantage of silicon for plants is well documented in literature as an improved resistance against fungi, in particular mildew. ELKEM Norway produces a silicon rich material, Solarite, which when present as very fine particles, is readily soluble and can neutralize acidity. In cooperation with Jiffy Norway Solarite was added to peat slabs. Common rockwool was added as a reference treatment. A mildew tolerant and a mildew sensitive variety of cucumber were planted on various slab types. Solarite resulted in a level of silicon of 0.5 mmol in the 1:1.5 extract. This resulted in a reduced incidence of naturally occurring mildew of 26% of the reference. The mildew tolerant variety showed less than 5% of mildew incidence. The silicon levels in the 1:1.5 extract reached with a common silicon source, micro crystalline silicon, were 0.2 mmol.l-1 and resulted in a mildew incidence of 63% of the reference. As reported by others, we found a yield reduction of 5% due to the use of silicon. In conclusion Solarite is an effective way to raise the silicon content and reduce mildew incidence in mildew sensitive higher yielding varieties. This must be traded off against the convenience of mildew resistant lower yielding varieties.
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