HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via ISI Web of Science (18) Citing Articles via Google Scholar Google Scholar Articles by Mbila, M. O. Articles by Laird, D. A. Search for Related Content PubMed PubMed Citation Articles by Mbila, M. O. Articles by Laird, D. A. GeoRef GeoRef Citation Agricola Articles by Mbila, M. O. Articles by Laird, D. A. Related Collections Tropical Soil Management Municipal Waste Soil Chemistry

Distribution and Movement of Sludge-Derived Trace Metals in Selected Nigerian Soils

^a Agronomy Dep., Iowa State Univ., Ames, IA 50011-1010
^b Univ. of Nigeria at Nsukka, Nsukka, Nigeria
^c USDA-ARS, National Soil Tilth Lab., Ames, IA 50011

View larger version (39K): [in a new window]   Fig. 1. Forms of Zn, Cu, Pb, and Ni in UNN sewage sludge as determined by sequential extractions.

View larger version (16K): [in a new window]   Fig. 2. Distribution of citrate–bicarbonate–dithionite–extractable Fe distribution in the three pedons.

View larger version (18K): [in a new window]   Fig. 3. Trace metal distribution with soil depth in Pedon 1, Pedon 2, and Pedon 3.

View larger version (16K): [in a new window]   Fig. 4. Metal enrichment of Pedon 2 and Pedon 3.

View larger version (53K): [in a new window]   Fig. 5. Forms of (a) Zn and (b) Cu in the three pedons as determined by sequential extractions.

View larger version (51K): [in a new window]   Fig. 6. Forms of (a) Pb and (b) Ni in the three pedons as determined by sequential extractions. See legend in Fig. 5 for explanation of fractions.