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dc.contributor.authorChen, CR
dc.contributor.authorXu, ZH
dc.contributor.authorHughes, JM
dc.date.accessioned2017-05-03T11:07:17Z
dc.date.available2017-05-03T11:07:17Z
dc.date.issued2002
dc.date.modified2009-09-02T07:41:14Z
dc.identifier.issn0178-2762
dc.identifier.doi10.1007/s00374-002-0532-y
dc.identifier.urihttp://hdl.handle.net/10072/6705
dc.description.abstractA field study was conducted to investigate the effects of N fertilization on soil N pools and associated microbial properties in a 13-year-old hoop pine (Araucaria cunninghamii) plantation of southeast Queensland, Australia. The treatments included: (1) control (without N application); (2) 300 kg N ha-1 applied as NH4NO3; and (3) 600 kg N ha-1 as NH4NO3. The experiment employed a randomized complete block design with four replicates. Soil samples were taken approximately 5 years after the N application. The results showed that application of 600 kg N ha-1 significantly increased concentrations of NH4+-N in 0-10 cm soil compared with the control and application of 300 kg N ha-1. Concentrations of NO3--N in soil (both 0-10 cm and 10-20 cm) with an application rate of 600 kg N ha-1 were significantly higher compared with the control. Application of 600 kg N ha-1 significantly increased gross N mineralization and immobilization rates (0-10 cm soil) determined by 15N isotope dilution techniques under anaerobic incubation, compared with the control. However, N application did not significantly affect the concentrations of soil total C and total N. N application appeared to decrease microbial biomass C and N and respiration, and to increase the metabolic quotient (qCO2) in 0-10 cm soil, but these effects were not statistically significant. The lack of statistical significance in these microbial properties between the treatments might have been associated with large spatial variability between the replicate plots at this experimental site. Spatial variability in soil microbial biomass C and N was found to relate to soil moisture, total C and total N.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherSpringer-Verlag
dc.publisher.placeNew York
dc.publisher.urihttps://link.springer.com/journal/374/volumes-and-issues/36-4
dc.relation.ispartofpagefrom276
dc.relation.ispartofpageto283
dc.relation.ispartofjournalBiology and Fertility of Soils
dc.relation.ispartofvolume36
dc.subject.fieldofresearchEnvironmental sciences
dc.subject.fieldofresearchBiological sciences
dc.subject.fieldofresearchAgricultural, veterinary and food sciences
dc.subject.fieldofresearchcode41
dc.subject.fieldofresearchcode31
dc.subject.fieldofresearchcode30
dc.titleEffects of nitrogen fertilization on soil nitrogen pools and microbial properties in a hoop pine (Araucaria cunninghamii) plantation in southeast Queensland, Australia
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© Springer-Verlag 2002. The original publication is available at www.springerlink.com
gro.date.issued2002
gro.hasfulltextNo Full Text
gro.griffith.authorHughes, Jane M.
gro.griffith.authorXu, Zhihong
gro.griffith.authorChen, Chengrong


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