Mobility, solubility and lability of fluid and granular forms of P fertiliser in calcareous and non-calcareous soils under laboratory conditions

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dc.contributor.authorLombi, E.
dc.contributor.authorMcLaughlin, M.
dc.contributor.authorJohnston, C.
dc.contributor.authorArmstrong, R.
dc.contributor.authorHolloway, R.
dc.date.issued2005
dc.descriptionThe original publication can be found at www.springerlink.com
dc.description.abstractDespite a long history of application of phosphorus fertilisers, P deficiency is still a major limitation to crop production on calcareous soils. Recent field research conducted in highly calcareous soils in southern Australia has demonstrated that both grain yield and P uptake of wheat (Triticum aestivum L.) is greater when fluid forms of P are used compared to granular forms. To improve our understanding of the mechanisms underlying this response to P in the field, we compared the lability, solubility and mobility of P applied as either a fluid (3 products) or granular (3 products) form to two calcareous and one alkaline non-calcareous soils in the laboratory. Over a five-week period, between 9.5 and 18 % of the P initially present in the fertiliser granules did not diffuse into the surrounding soil. The degree of granule dissolution was independent of the soil type. In contrast, P solubility, lability and diffusion were significantly greater when fluid products were applied to the calcareous soils, but not to the alkaline non-calcareous soil. These findings are discussed in relation to field trials results where fluid products outperformed granular fertilisers.
dc.description.statementofresponsibilityE. Lombi, M. J. McLaughlin, C. Johnston, R. D. Armstrong and R. E. Holloway
dc.identifier.citationPlant and Soil: international journal on plant-soil relationships, 2005; 269(1-2):25-34
dc.identifier.doi10.1007/s11104-004-0558-z
dc.identifier.issn0032-079X
dc.identifier.issn1573-5036
dc.identifier.orcidMcLaughlin, M. [0000-0001-6796-4144]
dc.identifier.urihttp://hdl.handle.net/2440/36332
dc.language.isoen
dc.publisherKluwer Academic Publ
dc.source.urihttps://doi.org/10.1007/s11104-004-0558-z
dc.subjectphosphorus
dc.subjectfluid and granular fertiliser
dc.subjectalkaline and calcareous soil
dc.titleMobility, solubility and lability of fluid and granular forms of P fertiliser in calcareous and non-calcareous soils under laboratory conditions
dc.typeJournal article
pubs.publication-statusPublished

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