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April 2020 Vol. 8 No.4

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Deguenon AY
Ketoh GK

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Merit Research Journal of Agricultural Science and Soil Science (ISSN: 2350-2274) Vol. 8(4) pp. 058-064, April, 2020

Copyright © 2020 Merit Research Journals
DOI:10.5281/zenodo.3767017

Original Research Article

Establishment and bioavailability of lead and cadmium in soils and Vernonia amygdalina at market gardening sites in Southern Benin

 
 
 

Adjouavi Yvette Deguenon1,3*, Bernadin Manou Elegbede2, Gilles Eustache Kinsiclounon4, Luc Koumolou1, Patrick A. Edorh1 and Guillaume K. Ketoh3

 

1Research Laboratory in Biochemistry and Environmental Toxicology, University of Abomey-Calavi (UAC), 03 PO. BOX 0994, Jericho, Cotonou, Benin.
2National Water Institute / Laboratory of Water and Environmental Sciences and Techniques (LWEST)/University of Abomey-Calavi (UAC), manelegbede@gmail.com
3Department of Physiology/ Pharmacology, Faculty of Science, University of Lome (UL), PO. Box 1515, Lome, Togo.
4Institute for Health Research and Development (IHRD), kinsgil69@yahoo.fr, Bp : 974 Abomey-Calavi.

*Corresponding Author’s E-mail : deguenonyvette01@gmail.com, (00229)97644363
 

Received: 06 April 2020 I Accepted: 19 April 2020 I Published: 24 April 2020
Copyright © 2020 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0.

 

Abstract

 

Vegetables from market gardening sites are contaminated with lead and cadmium. Agricultural inputs such as fertilizer and contaminate from the environment are suspected of making these toxic metals bioavailable. The research aims to establish the parameter that makes lead and cadmium bioavailable in soils for Vernonia amygdalina at market gardening sites in Southern Benin. Different agricultureral inputs were used on market gardening sites in Southern Benin on Vernonia amygdalina crops in a controlled environment. The impact of the inputs on plant growth by measuring stem length and leaf biomass was evaluated. The levels of lead and cadmium in leaves was determined using Atomic Absorption Spectrophometry. Fisher’s analysis of variance, Dunnett’s test showed that only the mixing of inputs had a positive impact on plant growth (significance p=0.05). Using plants that received no inputs as a reference, all other parameters contributed to an increase in both toxic metals. For Cd (chicken droppings ˂ urea ˂pesticides ˂contaminated water ˂mixture), and Pb (pesticides ˂urea ˂chicken droppings ˂ contaminated water ˂mixture). It would be very difficult to raise awareness against the use of agricultural inputs because of their positive impact on agricultural yield. The research concludes that lead and cadmium are bioavailable in soils for Vernonia amygdalina at market gardening sites.

Keyword: Bioavailability, Cadmium, Lead, Vernonia amygdalina




































































 








 




 

 
 


























 
 

 
 
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
   
 
                         

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