eprintid: 3991
rev_number: 12
eprint_status: archive
userid: 30
dir: disk0/00/00/39/91
datestamp: 2011-11-16 12:43:29
lastmod: 2014-11-12 04:02:20
status_changed: 2014-11-12 04:02:20
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@CGIAR.ORG
item_issues_count: 0
creators_name: Narteh, L T
creators_name: Sahrawat, K L
icrisatcreators_name: Sahrawat, K L
affiliation: Council of Scintific and Industial Research(Kumasi)
affiliation: WARDA(Bouake)
country: Ghana
country: Ivory Coast
title: Oxalate and EDTA extractable soil phosphorus and iron in relation to P availability in lowland rice soils of West Africa
ispublished: pub
subjects: s2.11
full_text_status: restricted
abstract: There is a complex relationship between iron (Fe) and phosphorus (P) in lowland soils grown to rice. There is, therefore, the need for quick and reliable extraction methods to assess their availability. The ability of ethylenediamine tetra acetic acid (EDTA) and ammonium oxalate (NH')2C20,·H20) to simultaneously extract Fe and P in soils was assessed with 15 soils from five important rice- growing cuntries in West Africa. The relationships between Olsen and Bray II P, inorganic P fractions and rice dry matter production and P uptake were also evaluated. The results showed that inorganic P fractions were in the order: Fe-PCa-PAI-P for 12 of the test soils, whereas AI-PFe-PCa-P was the order followed for two soils, and Ca-PFe-PAI-P for one soil. The mean Fe-P recorded was 77 mg P kg-I, although residual P recorded a higher mean of 153 mg P kg". Results of correlation analysis showed that correlation between EDT A-Fe and Oxalate-P was positive and highly significant (r= 0.92; PO.OOI). Similarly, highly significant relationship was established between EDTA-Fe and Fe-P, indicating that the two extractants were similar in selectivity of dissolution of inorganic phosphates and extractable Fe. Results from greenhouse pot experiments showed that there was higher and significant relationship (r
date: 1999
date_type: published
publication: Ghana Journal of Agricultural Science
volume: 32
number: 2
publisher: National Science and Technology Press
pagerange: 189-198
refereed: TRUE
issn: 0855-0042
official_url: http://www.ajol.info/index.php/gjas/article/view/1901
related_url_url: http://scholar.google.co.in/scholar?hl=en&q=%22Oxalate+and+EDTA+extractable+soil+phosphorus+and+iron+in+relation+to+P+availability+in+lowland+rice+soils+of+West+Africa%22&as_sdt=0%2C5&as_ylo=&as_vis=0
related_url_type: author
citation:   Narteh, L T and Sahrawat, K L  (1999) Oxalate and EDTA extractable soil phosphorus and iron in relation to P availability in lowland rice soils of West Africa.  Ghana Journal of Agricultural Science, 32 (2).  pp. 189-198.  ISSN 0855-0042     
document_url: http://oar.icrisat.org/3991/1/Ghana_J_Agri_Sc_32_2_189-198_1999.pdf