<![CDATA[Eggshell waste has the potential to be utilized as an alternative fertilizer material because it contains calcium carbonate, which may contribute to improving soil chemical properties and supporting plant growth. This study aimed to analyze the utilization of eggshells in various processed forms and their effects on plant growth and yield based on previous research findings. A descriptive qualitative approach was employed using a narrative literature review method. Literature was collected through Google Scholar, GARUDA, and publisher websites, prioritizing studies published between 2020 and 2026. A total of 20 studies were analyzed descriptively and comparatively based on plant species, processing forms, application rates, observed parameters, and research findings. The results indicated that eggshells applied as powder, flour, pellets, or liquid organic fertilizer produced varying responses in plant height, leaf number, root development, plant biomass, and yield components. Several studies reported improvements in plant growth and yield, while others demonstrated limited or statistically nonsignificant effects. These variations were associated with processing methods, application rates, plant species, growing media characteristics, and combinations with other fertilizer materials. In conclusion, eggshell waste has potential as a supplementary material for sustainable fertilization. However, further research is needed to determine appropriate processing methods and effective application rates under different cultivation conditions.]]>
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