Show simple item record

dc.contributor.authorHoltan-Hartwig, Liv
dc.contributor.authorBøckman, Oluf Chr.
dc.date.accessioned2022-07-21T11:04:25Z
dc.date.available2022-07-21T11:04:25Z
dc.date.issued1994
dc.identifier.issn0802-1600
dc.identifier.urihttps://hdl.handle.net/11250/3007512
dc.descriptionSupplementen_US
dc.description.abstractThe chemical, biochemical and physiological factors that govern the exchange of NH3 between plants and air are reviewed together with methods for measuring the gas exchange. The NH4• concentration and pH in plant cells differ between organelles. NH4• concentrations in the range of 1-50 mM and apoplast pH in the range of 5.3 - 7.0 have been reported. Physiochemical calculations indicate that such NH4• concentrations enable crops to emit NH3 under most circumstances during daytirne when stomata are open. The amounts emitted depend on interacting environmental and physiological factors. High temperatures enhance emission of NH3. The studies reviewed indicate thai crops are net emitters of NH3 to the atmosphere. Whilst losses are highly variable between crops and seasons it is suggested that for arable crops in temperate regions net losses of NH3 to atmosphere are of the order of 1-2 kg NH3N ha' y-'.en_US
dc.language.isoengen_US
dc.publisherNorwegian University of Life Sciences, Åsen_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.subjectAmmoniaen_US
dc.subjectammoniumen_US
dc.subjectatmosphereen_US
dc.subjectcropsen_US
dc.subjectgas exchangeen_US
dc.subjectnitrogen metabolismen_US
dc.subjectpHen_US
dc.subjecttemperatureen_US
dc.titleNorwegian Journal of Agricultural Sciences : ammonia exchange between crops and airen_US
dc.typeJournal issueen_US
dc.typeReporten_US
dc.typeOthersen_US
dc.source.pagenumber5 - 30en_US
dc.source.volume14en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

  • Institutt for plante og miljøvitenskap (IPM) [491]
    Inneholder materiale fra: Institutt for fruktdyrking, Institutt for geologi, Institutt for grønnsaksdyrking, Institutt for jord- og vannfag, Institutt for jordbunnslære og Institutt for jordkultur.

Show simple item record

Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal