Quantifying the Influence of Enriched Urban Compost and Wastes on Soil Physico-chemical and Biological Parameters of Bettahalli Village, Bangalore North Taluk: A Quantitative Analysis

Abstract

Enriched urban compost enhances soil for sustainable agriculture, improving structure, water dynamics, nutrient release, microbial life, and contributing to climate change mitigation. The present study was carried out in 2022 late winter to assess the impact of enriched urban compost and wastes on soil properties. Collected Soil samples were analyzed for physical, chemical, and biological properties pre and post-maize harvest. Enriched urban compost treatments showed a slight reduction in bulk density.  Increased Moisture holding capacity, pH, electrical conductivity, organic carbon, and magnesium remained mostly unchanged. Nitrogen, phosphorus, and potassium increased significantly with enriched compost, promoting sustained nutrient release. Available sulfur rose with compost addition. DTPA-extractable Cu, Zn, Fe, Mn, and B were significantly higher with enriched compost. Chromium, nickel, lead, and cadmium remained below critical limits.  Dehydrogenase and urease activities were significantly higher with enriched compost, indicating enhanced microbial action. Acid phosphatase activity increased, likely due to elevated phosphorus levels in organics, supporting P solubilizers. Enriched urban compost enhances soil properties, promoting agricultural sustainability through climate change mitigation, improved structure, and enhanced nutrient release. Advisably, incorporating enriched urban compost into agricultural practices optimizes soil health, fosters sustainable nutrient management, and supports microbial activities, thereby enhancing agricultural productivity.