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 525744
Title Nitrogen fixation in the phyllosphere of Gramineae
Author(s) Bessems, E.P.M.
Source University. Promotor(en): E.G. Mulder. - Wageningen : Centre for Agricultural Publishing and Documentation Pudoc - ISBN 9789022004234
Publication type Dissertation, internally prepared
Publication year 1973
Keyword(s) assimilatie - plantkunde - grassen - maïs - stikstof - poaceae - zea mays - voedergrassen - assimilation - botany - grasses - maize - nitrogen - fodder grasses
Categories Fertilizers, Fertilizer Application / Cyperales (Cyperaceae, Poaceae)

The investigation was carried out with Zea mays , grown under temperate conditions, and with Tripsacum laxum Nash, grown in the tropics. The conditions for nitrogen fixation were found to be unfavourable in the leachate, obtained by spray irrigation of the aerial plant parts of both experimental plants, but were favourable in the water present between sheath and stem. The ability of the phyllosphere micro-flora to fix nitrogen was proved qualitatively with the acetylene-reduction technique. The amount of nitrogen fixed by the micro-organisms in the phyllosphere of guatemala grass (260-400 g/ha per year) was estimated by exposing entire plants to 15N in situ. The nitrogen-fixing micro-organisms belonged mainly to the Enterobacteriaceae (genus Klebsiella).

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