Interaction between water, crop residue and fertilization management on the source-differentiated nitrogen uptake by rice DOI Creative Commons
Andrea Vitali, Federica Russo, Barbara Moretti

et al.

Biology and Fertility of Soils, Journal Year: 2024, Volume and Issue: 60(6), P. 757 - 772

Published: Jan. 26, 2024

Abstract Alternate wetting and drying (AWD) is an effective water-saving practice for rice cultivation that may however promote nitrogen (N) losses compared to continuous flooding (CF). The interaction between water, crop residue N fertilization management can influence the contribution of different sources plant uptake. We hypothesized microbial processes driving source-differentiated supply uptake during early growth stages will depend on water management, timing straw incorporation with respect temporal distribution mineral application. Rice was grown 60 days in mesocosm experiment involving a factorial design (i) two regimes (CF vs. AWD) (ii) three fertilizer managements, which soil N, porewater chemistry, were evaluated. Source partitioning fertilizer-, straw- soil-derived achieved by means dual-stable isotope 15 tracing approach. Although AWD reduced total about 4–25% CF, this could only be partly attributed lower fertilizer-N (and use efficiency), suggesting other affected management. Our findings evidence how redox conditions availability labile C inorganic strongly determined through feedback priming responses. incorporated contributed minimally it represented primary driver controlling nutrition these These insights contribute identify suitable practices favour under AWD.

Language: Английский

Geobatteries in environmental biogeochemistry: Electron transfer and utilization DOI Creative Commons
Shihao Cui, Rui Wang, Qing Chen

et al.

Environmental Science and Ecotechnology, Journal Year: 2024, Volume and Issue: 22, P. 100446 - 100446

Published: July 2, 2024

The efficiency of direct electron flow from donors to acceptors in redox reactions is significantly influenced by the spatial separation these components. Geobatteries, a class redox-active substances naturally present soil-water systems, act as reservoirs, reversibly donating, storing, and accepting electrons. This capability allows temporal decoupling half-reactions, providing flexible transfer mechanism. In this review, we systematically examine critical role geobatteries influencing utilization environmental biogeochemical processes. Typical centers within geobatteries, such quinone-like moieties, nitrogen- sulfur-containing groups, variable-valent metals, possess potential repeatedly charge discharge. Various characterization techniques, ranging qualitative methods like elemental analysis, imaging, spectroscopy, quantitative techniques chemical, spectroscopic, electrochemical methods, have been developed evaluate reversible capacity. Additionally, current research on ecological significance extends beyond natural systems (e.g., soil carbon cycle) engineered water treatment nitrogen removal) waste management anaerobic digestion). Despite advancements, challenges complexity difficulties accurately quantifying exchange capacity, scaling-up issues must be addressed fully unlock their potential. review underscores both promise associated with responding issues, climate change pollutant transformation.

Language: Английский

Citations

7
Interaction between water, crop residue and fertilization management on the source-differentiated nitrogen uptake by rice DOI Creative Commons
Andrea Vitali, Federica Russo, Barbara Moretti

et al.

Biology and Fertility of Soils, Journal Year: 2024, Volume and Issue: 60(6), P. 757 - 772

Published: Jan. 26, 2024

Abstract Alternate wetting and drying (AWD) is an effective water-saving practice for rice cultivation that may however promote nitrogen (N) losses compared to continuous flooding (CF). The interaction between water, crop residue N fertilization management can influence the contribution of different sources plant uptake. We hypothesized microbial processes driving source-differentiated supply uptake during early growth stages will depend on water management, timing straw incorporation with respect temporal distribution mineral application. Rice was grown 60 days in mesocosm experiment involving a factorial design (i) two regimes (CF vs. AWD) (ii) three fertilizer managements, which soil N, porewater chemistry, were evaluated. Source partitioning fertilizer-, straw- soil-derived achieved by means dual-stable isotope 15 tracing approach. Although AWD reduced total about 4–25% CF, this could only be partly attributed lower fertilizer-N (and use efficiency), suggesting other affected management. Our findings evidence how redox conditions availability labile C inorganic strongly determined through feedback priming responses. incorporated contributed minimally it represented primary driver controlling nutrition these These insights contribute identify suitable practices favour under AWD.

Language: Английский

Citations

6