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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.identifier.citationPlant and Soil: international journal on plant-soil relationships, 2005; 269(1-2):25-34-
dc.descriptionThe original publication can be found at
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.publisherKluwer Academic Publ-
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-
dc.identifier.orcidMcLaughlin, M. [0000-0001-6796-4144]-
Appears in Collections:Aurora harvest
Environment Institute publications
Soil and Land Systems publications

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