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Hydrogel Application in Urban Farming: Potentials and Limitations—A Review

Palanivelu, S.D.; Armir, N.A.Z.; Zulkifli, A.; Hair, A.H.A.; Salleh, K.M.; Lindsey, K.; Che-Othman, M.H.; Zakaria, S.

Hydrogel Application in Urban Farming: Potentials and Limitations—A Review Thumbnail


S.D. Palanivelu

N.A.Z. Armir

A. Zulkifli

A.H.A. Hair

K.M. Salleh

M.H. Che-Othman

S. Zakaria


Urban agriculture plays a vital role in ensuring the self-sufficiency of a great variety of fresh vegetables and nutrients. It promotes a sustainable food system as well as reducing the dependency on imports for the growing population. Urban farming has made it possible for agriculture practices to be implemented anywhere at any time in a sophisticated way. Hydrogel has been introduced in urban agriculture in the past few decades. However, the application of hydrogel in urban agriculture is still being explored in terms of hydrogel types, structure, physical and chemical properties, change due to external factors, and its suitability for different plant species. This review discusses the potentials and limitations of hydrogel in different application conditions. We present the state of knowledge on hydrogel production and crosslinking methods, hydrogel characteristics, water absorption and release mechanisms of hydrogel, hydrogel advantages and limitations, and current and future applications in urban farming.


Palanivelu, S., Armir, N., Zulkifli, A., Hair, A., Salleh, K., Lindsey, K., …Zakaria, S. (2022). Hydrogel Application in Urban Farming: Potentials and Limitations—A Review. Polymers, 14(13), Article 2590.

Journal Article Type Article
Acceptance Date Jun 22, 2022
Online Publication Date Jun 26, 2022
Publication Date Jul 1, 2022
Deposit Date Jul 27, 2022
Publicly Available Date Jul 27, 2022
Journal Polymers
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 14
Issue 13
Article Number 2590


Published Journal Article (3.1 Mb)

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Copyright Statement
This 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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