Application of novel organically derived fulvic acids in soil aggregate size distribution, fraction, organic carbon, and nitrogen content in three distinct soils.

ABSTRACT: The application of organic manure/substances in soil can directly alter soil structure and influence the soil organic carbon (SOC), soil aggregate stability, and aggregate-associated nitrogen (N). In this study, a pot experiment was conducted to evaluate the influence of three organically derived fulvic acid (FA) treatments-fulvic acid powder (S, 0.25%), natural liquid (NL, 0.50%) and plant-derived liquid (P, 0.50%)-alongside a control (CK) on aggregate size distribution (>250 μm, 250-53 μm and <53 μm sizes), SOC, total nitrogen (TN), water-stable aggregates, and mean weight diameter (MWD) of aggregates in three typical soils: albic black (AL), irrigated desert (IR) and Shahjiang black (SH). The results showed that water-stable aggregates increased by 39.6% when using 0.25% S amendment in

SUBMITTER: Sootahar MK 

PROVIDER: S-EPMC12576947 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature