https://doi.org/10.37229/fsa.fjh.2026.03.26

This study investigated the effects of partially replacing mineral nitrogen fertilizers with compost tea and chicken manure tea on the productivity and fruit physico-chemical quality of Williams banana plants grown in clay loam soil in El-Minia Governorate, Egypt, during the 2023 (second ratoon) and 2024 (third ratoon) seasons. A randomized complete block design with five treatments: 100% mineral N (control), and 80/60/40/20% mineral N combined with 10/20/30/40% each of compost tea and chicken manure tea. Results showed that the 60% mineral N + 20% compost tea + 20% chicken manure tea treatment significantly increased bunch weight, hand weight, finger weight, length, diameter, total soluble solids, total sugars, and reduced acidity and starch compared to the control (100% mineral N). This optimal substitution enhanced nutrient uptake, and fruit quality, promoting sustainable banana production by reducing chemical fertilizer reliance.