Palanivelu Swarna Devi, Armir Nur Amira Zainul, Zulkifli Amalia, Hair Ainul Hafiza Abdul, Salleh Kushairi Mohd, Lindsey Keith, Che-Othman Muhamad Hafiz, Zakaria Sarani
Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia.
Bioresources and Biorefinery Laboratory, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia.
Polymers (Basel). 2022 Jun 26;14(13):2590. doi: 10.3390/polym14132590.
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.
都市农业在确保多种新鲜蔬菜和养分的自给自足方面发挥着至关重要的作用。它促进了可持续的粮食系统，同时减少了不断增长的人口对进口的依赖。都市农业使农业实践能够以复杂的方式在任何地点、任何时间得以实施。在过去几十年里，水凝胶已被引入都市农业。然而，就水凝胶的类型、结构、物理和化学性质、外部因素导致的变化及其对不同植物物种的适用性而言，水凝胶在都市农业中的应用仍在探索之中。本综述讨论了水凝胶在不同应用条件下的潜力和局限性。我们介绍了关于水凝胶生产和交联方法、水凝胶特性、水凝胶的吸水和释水机制、水凝胶的优点和局限性以及在都市农业中的当前和未来应用的知识现状。
