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Effects of biochar and poultry manure on soil properties, growth, quality, and yield of cocoyam (Xanthosoma sagittifolium Schott) in degraded tropical sandy soil – RETRACTION

Published online by Cambridge University Press:  21 April 2026

Taiwo Michael Agbede Open the ORCID record for Taiwo Michael Agbede [Opens in a new window] ,
Aruna Olasekan Adekiya ,
Adeniyi Shadrack Odoja ,
Lucia Nike Bayode ,
Paul O. Omotehinse  and
Imole Adepehin
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Abstract

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Information

Type
Retraction
Information
Experimental Agriculture , Volume 62 , 2026 , e5
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Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2026. Published by Cambridge University Press

This article was reported by a reader as being a duplicate of another publication, received and published earlier:

Agbede, T. M., Odoja, A. S., Bayode, L. N., Omotehinse, P. O., & Adepehin, I. (2020). ‘Effects of biochar and poultry manure on soil properties, growth, yield and quality of cocoyam (Xanthosoma sagittifolium Schott) grown in sandy soil’. Communications in Soil Science and Plant Analysis, 51(7), 932–947. https://doi.org/10.1080/00103624.2020.1744621

After editorial review, the reader’s report was upheld and the publication was found to be substantially duplicated from the earlier publication, with major levels of redundancy. This later article is therefore retracted.

The corresponding author was contacted for comment but did not reply.

The authors, other journal and reader have been informed of this action.

References

Agbede, TM, Adekiya, AO, Odoja, AS, Bayode, LN, Omotehinse, PO, Adepehin, I. Effects of biochar and poultry manure on soil properties, growth, quality, and yield of cocoyam (Xanthosoma sagittifolium Schott) in degraded tropical sandy soil. Experimental Agriculture. 2020;56(4):528–543. doi:10.1017/S0014479720000137CrossRefGoogle Scholar