Unveiling the Potential of Coffee Grounds, Banana Peels and Egg Shells as an Eco‐Friendly and Sustainable Fertilizer

Abstract

Coffee grounds, along with other organic materials like eggshells and banana peels, offer a promising solution for improving food security. This research brings innovation to the forefront by reimagining kitchen waste as a valuable resource for sustainable agriculture, introducing a multicomponent fertilizer approach, exploring different application methods, and focusing on a staple crop, ultimately contributing to the broader discourse on food security and environmental conservation. This study evaluated the effect of coffee grounds, eggshells, and banana peels as fertilizers on the growth and germination of Phaseolus vulgaris (common bean) plants. Two types of fertilizers are prepared: a dry mixture and a wet mixture obtained by boiling the dry mixture in water for 15 min. The height of the plants is measured weekly over a period of four weeks. The results indicated that the wet fertilizer mixture is more effective in promoting plant growth than the dry mixture. Plants that received the wet fertilizer mixture exhibited a higher growth rate and reached a greater height than those that received the dry mixture. It can be concluded that the wet fertilizer mixture is more efficient in promoting the growth of Phaseolus vulgaris plants than the dry mixture.