Combined use of compost, compost tea, and vermicompost tea improves soil properties, and growth, yield, and quality of (Allium cepa L.)

Liquid organic fertilizers are solutions that a valuable choice for sustainable agriculture. In addition, these forms play significant role, in integrated waste management strategies. this study, one-way analysis of variance, Pearson correlations and principal component were performed on all traits, to compare the responses sole application compost, compost tea, vermicompost tea their combinations growth, yield Allium cepa soil properties. The results showed that, most cases with treatments, pH, CaCO3 bulk density decreased, while matter, total N, available P K increased. A mixture 50% 25% had more desirable effect plant height, leaves number, fresh weight dry weight. Therefore, it is possible achieve an acceptable bulb ton/ha, soluble solids %, matter %. While, P, % raised when plants treated teas or combined 50%. Using was higher nutrient concentration impact onion productivity,