Soil carbon dynamics in conventional and Organic Mango orchards of Kolar district of Karnataka

Abstract

This study investigates the interrelationship between nutrient cycling and soil carbon dynamics in organic and conventional mango (Mangifera indica L.) Comparative soil analyses were conducted to assess differences in soil organic carbon (SOC), available macronutrients (N, P, K), microbial biomass carbon (MBC), and key soil enzyme activities. Results indicate that Organic management significantly increased SOC content, MBC, and enzymatic activities associated with nutrient mineralization, indicating enhanced microbial activity and improved nutrient turnover. Conversely, conventional systems often show greater short-term nutrient availability but reduced microbial diversity and potential SOC depletion. The results highlight the potential of organic practices to promote long-term soil fertility and carbon sequestration. At the same time, conventional systems may prioritize short-term productivity at the expense of soil health.