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dc.contributor.authorKelay, Asha
dc.contributor.authorHarris, P. J. C.
dc.contributor.authorBateman, M. J.
dc.date.accessioned2010-02-17T14:25:21Z
dc.date.available2010-02-17T14:25:21Z
dc.date.issued2010
dc.identifier.citationCommunications in Soil Science and Plant Analysis, 41(1) : 98-107
dc.identifier.issn00103624
dc.identifier.issn15322416
dc.identifier.doi10.1080/00103620903360304
dc.identifier.urihttp://hdl.handle.net/2436/92381
dc.description.abstractThe supply of nutrients to plants from organic growing media depends on mineralization as the addition of inorganic nutrients is forbidden in certified organic systems. The objective of this study was to determine the relationship between total phosphorus (P), extractable (Olsen’s) P, organic P, and biomass P in growing media and uptake of P by ryegrass. Three proprietary products were used alone and combined in 1:2 and 2:1 proportions to give nine growing media. Perennial ryegrass (Lolium perenne L. cv. ‘Choice’) was irrigated with a modified Hoagland’s solution minus P, and the shoots were harvested after 28, 56, and 84 days. There was no significant correlation between the amounts of the different forms of P in the growing media and ryegrass dry weight or P concentration in harvested grass. However, total ryegrass P uptake was significantly positively correlated with initial total P and organic P in the growing media.
dc.language.isoen
dc.publisherTaylor & Francis
dc.relation.urlhttp://dx.doi.org/10.1080/00103620903360304
dc.subjectLolium perenne L.
dc.subjectOrganic growing media
dc.subjectPhosphorus availability
dc.subjectRyegrass
dc.titleRelationship between phosphorus in organic growing media and its uptake by ryegrass
dc.typeJournal article
dc.identifier.journalCommunications in Soil Science and Plant Analysis
html.description.abstractThe supply of nutrients to plants from organic growing media depends on mineralization as the addition of inorganic nutrients is forbidden in certified organic systems. The objective of this study was to determine the relationship between total phosphorus (P), extractable (Olsen’s) P, organic P, and biomass P in growing media and uptake of P by ryegrass. Three proprietary products were used alone and combined in 1:2 and 2:1 proportions to give nine growing media. Perennial ryegrass (Lolium perenne L. cv. ‘Choice’) was irrigated with a modified Hoagland’s solution minus P, and the shoots were harvested after 28, 56, and 84 days. There was no significant correlation between the amounts of the different forms of P in the growing media and ryegrass dry weight or P concentration in harvested grass. However, total ryegrass P uptake was significantly positively correlated with initial total P and organic P in the growing media.


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