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1999-07-08Zeitschriftenartikel DOI: 10.18452/9427
Determination of volume weight and water content of wood fiber substrates with different methods
dc.contributor.authorGruda, Nazim
dc.contributor.authorSchnitzler, Wilfried H.
dc.date.accessioned2017-06-17T01:03:03Z
dc.date.available2017-06-17T01:03:03Z
dc.date.created2009-04-06
dc.date.issued1999-07-08
dc.date.submitted1999-02-13
dc.identifier.issn0938-0337
dc.identifier.urihttp://edoc.hu-berlin.de/18452/10079
dc.description.abstractDifferent methods for the investigation of physical properties of wood fiber substrates and one other organic substrate were compared. The parameters volume weight and volumetric water content are discussed. The results lead to important aspects for the application of these methods to investigate wood fiber and other organic substrates. With less work and less time involved the LUFA method provides similar results as the ISHS method for the detemination of the volume weight of organic substates. To evaluate the true conditions within a pot only the "pot-method" is suitable. An example for calculating the N-min-content of the substrate with volume weight obtained from different methods is given. To measure the volumetric water content on the base f a given volume weight either a modified ISHS method, the positive or the negative pressure method can be used. Close relationships have been obtained between the modified ISHS method and the other two methods at pF = 1.0, 1.7 and 2.0. A prerequisite for good results in measurments of substrate mixtures is a homogeneous material. Thus, independent of laboratory facilities investigation on substrat€s can be done at least for physical properties, where the ISHS method has not been introduced.eng
dc.language.isoeng
dc.publisherHumboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectgrowing mediager
dc.subjectorganic substrateger
dc.subjectwood fiber substrateeng
dc.subjectgrowing mediumeng
dc.subjectISHS methodeng
dc.subjectpositive pressure methodeng
dc.subjectnegative pressure methodeng
dc.subject.ddc500 Naturwissenschaften
dc.subject.ddc580 Pflanzen (Botanik)
dc.subject.ddc050 Zeitschriften, fortlaufende Sammelwerke
dc.titleDetermination of volume weight and water content of wood fiber substrates with different methods
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-10097271
dc.identifier.doihttp://dx.doi.org/10.18452/9427
local.edoc.container-titleAgribiological Research
local.edoc.type-nameZeitschriftenartikel
local.edoc.institutionLandwirtschaftlich-Gärtnerische Fakultät
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
local.edoc.container-volume52
local.edoc.container-issue2
local.edoc.container-year1999
local.edoc.container-firstpage163
local.edoc.container-lastpage170
dc.description.versionPeer Reviewed

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