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dc.contributorSmith, A. P.en_US
dc.contributorRobertson, Michaelen_US
dc.contributorWhitbread, Anthonyen_US
dc.contributorHuth, Neilen_US
dc.contributorDavoren, W.en_US
dc.contributorEmms, J.en_US
dc.contributorLlewellyn, Ricken_US
dc.creatorDescheemaeker, Katrienen_US
dc.identifier.citationKatrien Descheemaeker, A. P. Smith, Michael Robertson, Anthony Whitbread, Neil Huth, W. Davoren, J. Emms, Rick Llewellyn. (7/10/2014). Simulation of water-limited growth of the forage shrub saltbush (Atriplex nummularia Lindl. ) in a low-rainfall environment of southern Australia. Crop and Pasture Science, 67(2), pp. 1068-1083.en_US
dc.description.abstractOld man saltbush (Atriplex nummularia Lindl.) is a useful forage shrub for livestock in the low-rainfall areas of the world, and particularly in Australia. In these semi-arid and arid environments, saltbush is valuable for increasing the production from otherwise marginal areas of the farm and during drought periods when there are few feed alternatives. The ability to predict the growth and development of perennial forages such as old man saltbush in response to rainfall, soils and farm management is necessary for farming system planning and design purposes. A field experiment was conducted at Waikerie, South Australia, to inform the development of a new forage shrub model for use in the APSIM framework. The model takes into account the common setup of saltbush plantations in alley systems, by simulating light interception and water uptake for interacting shrub and inter-row zones separately. This is done by modelling the canopy and root system development. Field data across three soil types along a landscape catena showed that the model was able to satisfactorily predict daily biomass accumulation, partitioning into leaf and woody biomass, and regrowth after grazing. The model was sensitive to properties associated with the root system, and with limited parameterisation can be tailored to simulate different clonal cultivars. The model can now be used in the APSIM framework to assess temporal and spatial dynamics of forage systems combining shrubs with herbaceous pasture components.en_US
dc.publisherCSIRO Publishingen_US
dc.sourceCrop and Pasture Science;67,(2014) Pagination 1068,1083en_US
dc.subjectbiomass partitioningen_US
dc.subjecteyres greenen_US
dc.subjectfarming systems modelen_US
dc.subjectradiation use efficiencyen_US
dc.subjectrooting depth.en_US
dc.titleSimulation of water-limited growth of the forage shrub saltbush (Atriplex nummularia Lindl.) in a low-rainfall environment of southern Australiaen_US
dc.typeJournal Articleen_US
cg.creator.idWhitbread, Anthony: 0000-0003-4840-7670en_US
cg.contributor.centerWageningen University & Research Centre - WURen_US
cg.contributor.centerCommonwealth Science and Industrial Research Organisation - CSIROen_US
cg.contributor.centerGeorg-August-Universitat Gottingen - Uni-Goettingenen_US
cg.contributor.crpCRP on Dryland Systems - DSen_US
cg.contributor.funderNot Applicableen_US
cg.coverage.regionAustralia and New Zealanden_US
dc.identifier.statusLimited accessen_US

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