Legume residue influence arbuscular mycorrhizal colonisation and P uptake by wheat

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dc.contributor.authorHasbullah,
dc.contributor.authorMarschner, P.
dc.contributor.authorMcNeill, A.
dc.date.issued2011
dc.description.abstractLegumes have been shown to increase growth and P uptake of the following cereal. This could, in part, be due to nutrients released by the decomposing legume residues. To investigate the effect of P added with legume residues on wheat growth, P uptake and arbuscular mycorrhizal (AM) colonisation, a number of experiments were conducted with different legume residues added to a soil with low P availability under conditions in which N was not limiting. Young and mature faba bean shoots (FYS, FMS) and mature chickpea shoots (CP) were added to soil at different rates (0.5–2%, w/w) with the P concentration being the greatest in the young faba bean shoots and least in the mature chickpea residues. Other treatments included addition of inorganic P at different rates (0–80 mg P kg−1). Available P, growth and P uptake and AM colonisation of wheat were measured after 6 weeks. As expected, inorganic P addition increased growth and P uptake but decreased AM colonisation. The effect of the residues was more complex. AM colonisation was not correlated with available P in the soil amended with residues, whereas there was significant negative correlation between available P and AM colonisation in the treatments with inorganic P. Addition of FYS increased wheat shoot growth and P uptake and decreased AM colonisation. However, FMS and CP addition not only decreased wheat growth and P uptake but also AM colonisation despite low soil P availability. It is concluded that addition of some legume residues can improve the growth of subsequent cereals, but others have a negative effect on wheat growth and AM colonisation which cannot be explained solely by soil P availability.
dc.description.statementofresponsibilityHasbullah, Petra Marschner and Ann McNeill
dc.identifier.citationBiology and Fertility of Soils, 2011; 47(6):701-707
dc.identifier.doi10.1007/s00374-011-0581-1
dc.identifier.issn0178-2762
dc.identifier.issn1432-0789
dc.identifier.orcidMarschner, P. [0000-0001-6808-0244]
dc.identifier.orcidMcNeill, A. [0000-0002-6060-4661]
dc.identifier.urihttp://hdl.handle.net/2440/69987
dc.language.isoen
dc.publisherSpringer-Verlag
dc.relation.grantARC
dc.rightsCopyright Springer-Verlag 2011
dc.source.urihttps://doi.org/10.1007/s00374-011-0581-1
dc.subjectArbuscular mycorrhiza
dc.subjectLegumes
dc.subjectP availability
dc.subjectP uptake
dc.subjectWheat
dc.titleLegume residue influence arbuscular mycorrhizal colonisation and P uptake by wheat
dc.typeJournal article
pubs.publication-statusPublished

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