Synapse
⌘+K
Synapse
PulseExploreClubsResearchersJournals
Instagram
HomeClubsExplore
September 1, 2026European Journal of Soil Science

Green Manuring‐Based Systems and Nutrient Management Interactions Modulate Aggregate CN Stoichiometry, Soil C‐Stock, and Crop Yield

View Full Paper
Ask AI
Bookmark
Share

Authors

SKSantanu KunduVPVijay PooniyaDKDinesh Kumar

Discussion

Loading...

Member takes

Overview

Long-term field experiment shows that green manuring with organic nutrient management enhances soil aggregation and carbon stocks in rice–wheat systems, indicating improved long-term soil health.

Key Points

  • To evaluate the long-term individual and interactive effects of green manure-based cropping systems and nutrient management practices on soil aggregate stability, carbon-nitrogen stoichiometry, soil carbon stocks, and crop yields.
  • Conducted a 21-year fixed-plot field experiment (2003–2024) comparing Sesbania aculeata (System I) and mungbean (System II) green manure rotations under organic and conventional chemical nutrient management.
  • Applied organic nutrient management combinations of farmyard manure, crop residues, and biofertilizers against conventional chemical inputs.
  • Assessed macroaggregate and mesoaggregate distribution, carbon-nitrogen stoichiometry, passive carbon pools across topsoil and subsoil, and five-year rice–wheat productivity (2019–2020 to 2023–2024).
  • Organic nutrient management combined with Sesbania green manuring significantly increased macroaggregate and mesoaggregate formation and elevated aggregate-associated carbon and nitrogen content compared to conventional chemical management.
  • Passive carbon fractions (less-labile and nonlabile carbon) accounted for over 50% of the total entrapped soil carbon within aggregate structures.
  • Retention of crop residues with high carbon-to-nitrogen ratio organic manures enhanced topsoil and subsoil carbon stocks, positively correlating with within-aggregate carbon accumulation and sustained rice–wheat yields.

Cite This Study

Kundu et al. (2026) studied this question.

synapsesocial.com/papers/6aaca326696769727593cfb8https://doi.org/10.1111/ejss.70417
View Full Paper
Ask AI
Bookmark
Share