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Research Article |

Effect of Organic Amendments on Selected Heavy Metals (Cd, Cr and Pb) Uptake by Tomato (Lycopersicon Esculentum Miller) Plant

The accumulation of heavy metals in agricultural products and soil is a serious issue since it affects crop development and productivity as well as food safety and marketability. Global interest in the cleanup of heavy metal-contaminated soils has grown. The amendment of contaminated soil with organic materials is considered an environmentally friendly technique to immobilize heavy metals and minimize their subsequent bioaccumulation in plants. The aim of this experiment was to remediate waste Akaki River-irrigated Akaka irrigation farm soil with organic materials (animal manure, compost, and vermicompost) in a pot experiment with 3%, 6%, and 9% rates of organic material and contaminated soil in a greenhouse with ten treatments. Soil Comparative research on the impact of organic soil additives on heavy metal remediation from contaminated soil with heavy metals (Cd, Pb, and Cr) and the uptake of these elements by tomato (Lycopersicon esculentum Miller) plants was carried out. Also, the heavy metal removal efficiency of organic additives from contaminated soil was examined, and vermicompost showed good removal efficiency compared to compost and animal manure. Organic amendments led to decreased heavy metal content in tomatoes and this decrease was best expressed with 9% vermicompost. It shows with increasing amount of organic materials the heavy metal removal efficiency also increases. Organic amendments were especially effective in reducing the lead content of tomatoes.

Heavy Metal, Organic Amendment, Tomato

Dagne Bekele, Lijalem Abeble, Mohammed Yimam. (2023). Effect of Organic Amendments on Selected Heavy Metals (Cd, Cr and Pb) Uptake by Tomato (Lycopersicon Esculentum Miller) Plant. American Journal of Applied Scientific Research, 9(4), 138-146.

Copyright © 2023 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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