Aluminum detoxification with green manures

dc.contributor.authorHue, N.en
dc.contributor.authorAmien, I.en
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.date.accessioned2016-04-19T18:08:25Zen
dc.date.available2016-04-19T18:08:25Zen
dc.date.issued1989en
dc.descriptionMetadata only recorden
dc.description.abstractA greenhouse experiment was conducted to evaluate "liming" potential of different green manures. Ground leafy materials of cowpea (Vigna unguiculata), leucaena (Leucaena leucocephala) and guinea grass (Panicum maximum) were added at 0, 5, 10 and 20 g/kg to an Ultisol having a soil water pH 4.0, Kcl-extractable Al = 7.6 cmolc/kg, Al saturation = 50% and soil-solution Al = 2.2 mM. Treatments with Ca(OH)2 were established for comparison. Sesbania cochinchinensis, an Al-sensitive tree legume, was grown for 4 weeks as a test crop. Biomass production and chemical composition of the soil indicated that (i) cowpea and leucaena were more effective than guinea grass in detoxifying Al; for example, the additions of 10g manure per kg soil were equivalent to 1.8 cmol(OH)/kg for guinea grass, 3.4 for cowpea and 4.2 for leucaena (at least on a short-term basis), (ii) reduction of soluble Al at increased pH as a result of manure additions was the major mechanism for Al detoxification, and (iii) complexation of soluble Al by organic molecules also contributed to the detoxification.en
dc.format.mimetypetext/plainen
dc.identifier427en
dc.identifier.citationCommunications in Soil Science and Plant Analysis 20: 1499-1511 (1989)en
dc.identifier.issn0010-3624en
dc.identifier.issn1532-2416en
dc.identifier.urihttp://hdl.handle.net/10919/65492en
dc.language.isoen_USen
dc.publisherTaylor & Francisen
dc.relation.urihttp://www2.ctahr.hawaii.edu/tpss/research_extension/soliresearch/biowaste/green.htmen
dc.subjectSoil degradationen
dc.subjectGreen manure cropsen
dc.subjectSoil managementen
dc.subjectCowpeasen
dc.subjectLeucaenaen
dc.subjectGuinea grassen
dc.subjectAcid soilsen
dc.subjectAluminum toxicityen
dc.subjectUltisolen
dc.subjectField Scaleen
dc.titleAluminum detoxification with green manuresen
dc.typeAbstracten
dc.type.dcmitypeTexten

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