Critical limit of extractable phosphorous in a gleysol for rice production in the Senegal River Valley of West Africa

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dc.contributor.authorBado, B.
dc.contributor.authorDe Vries, M.
dc.contributor.authorHaefele, S.
dc.contributor.authorMarco, M.
dc.contributor.authorNdiaye, M.
dc.date.issued2007
dc.descriptionPublished online: 31 Mar 2008. For Erratum see Communications in Soil Science and Plant Analysis, 2008;39(3-4):626-626
dc.description.abstractSoil‐test correlation and calibration, a useful tool for fertilizer recommendations, has been little used in West Africa. Soils from a long‐term fertility experiment have been used to study the relationship between rice yields and soil extractable phosphorus (P) with Bray 1 and Olsen methods. The Cate and Nelson graphical method was used for critical limits of soil P determination. The critical limits of soil extractable P at 95% relative grain yield were 9 mg P for the Bray 1P and 17 mg P kg−1 for Olsen P. The Olsen P was more correlated (r=0.63) with rice grain yields than Bray P (r=0.50), but a strong correlation (r=0.92) was also observed between the values of the two methods. Results indicate that at levels less than these critical levels of extractable P, P fertilizers should be applied to increase rice yields.
dc.description.statementofresponsibilityB. V. Bado, M. E. De Vries, S. M. Haefele, M. C. S. Marco, and M. K. Ndiaye
dc.identifier.citationCommunications in Soil Science and Plant Analysis, 2007; 39(1-2):202-206
dc.identifier.doi10.1080/00103620701759178
dc.identifier.issn0010-3624
dc.identifier.issn1532-2416
dc.identifier.orcidHaefele, S. [0000-0003-0389-8373]
dc.identifier.urihttp://hdl.handle.net/2440/87186
dc.language.isoen
dc.publisherTaylor & Francis
dc.rightsCopyright © Taylor & Francis Group, LLC
dc.source.urihttps://doi.org/10.1080/00103620701759178
dc.subjectCritical level; fertilizer; phosphorous; rice; soil
dc.titleCritical limit of extractable phosphorous in a gleysol for rice production in the Senegal River Valley of West Africa
dc.typeJournal article
pubs.publication-statusPublished

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