Characterisation of Liquid Fertiliser from Different Types of Bio-Waste Compost and its Correlation with the Compost Nutrients

Urban Farm DB summary

This study characterized the physical and nutrient properties of liquid fertiliser (compost leachate and compost tea) derived from different bio-waste composts and sought to establish a correlation between their nutrient composition and that of the resulting solid compost. It found that the liquid fertiliser contains nitrogen, potassium and phosphorus essential for plant growth but requires dilution or pre-treatment before use due to high organic content, and developed a formula, using graphical analysis and simple linear regression, that predicts solid compost nutrient composition from analysis of the liquid fertiliser.