Combined impact of no-tillage and cover crops on soil carbon stocks and fluxes in maize crops

Soil and Tillage Research, Journal Year: 2023, Volume and Issue: 233, P. 105782 - 105782

Published: June 16, 2023

Soil plays a major role in the carbon cycle for both stocks and respiration since soil organic (SOC) is most important pool CO2 efflux largest source of emissions to atmosphere. The aim this study was understand how combination no-till (NT) cover cropping (CC) influences SOC respiration. measured southwestern France from April October at two distinct sites characterized by contrasting initial contents. Each site included adjoining maize fields which conservation (NT+CC) conventional (CT) practices were used. For with high contents (> 50 tC ha-1 0–30cm layer), 0–90 cm depth (NT+CC: 72.4 ± 10.6, CT: 68.9 9.2 t C ha-1) during growing season 0.57 0.24, 0.54 0.26 g m-2 h-1) not significantly different practices. low contents, 42.7 5.5, 29.7 4.8 0.86 0.32, 0.50 0.34 higher NT+CC than CT Due crop biomass root density, mineralization enhanced. We showed positive effect on stock upper layers but also deeper (60–90 cm) only content environment. At levels, may have reached its sequestration potential, or time implemented long enough observe effects. Our shows that potential sequester large amounts SOC, enabling mitigation greenhouse gas emissions, strongly depends

Language: Английский

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Combining field measurements and process‐based modelling to analyse soil tillage and crop residues management impacts on crop production and carbon balance in temperate areas

Soil Use and Management, Journal Year: 2024, Volume and Issue: 40(3)

Published: July 1, 2024

Abstract Crop residues management is an important issue in the context of climate change. They might be kept on field and restituted to soil enhance its fertility or exported for other uses such as production energy through biomethanization. Furthermore, choices regarding tillage operations impact potential incorporate residues, which turn affects physical (e.g. structure, water retention), biological organic matter, microorganisms) chemical nutrient release mineralization) fertility. We combined measurements from a 14‐year experiment Hesbaye loamy region Belgium simulation with STICS soil‐crop model investigate impacts crop production, characteristics carbon balance. Four treatments were compared, where all combinations incorporation versus exportation conventional reduced tested. The comparison observations simulations proved that adequate explore contrasted management. analysis data outputs showed was positively influenced by but unresponsive fate. Reduced led clear stratification observed SOC content topsoil (0–30 cm), also increase simulated stocks (0–26 cm). This gain greater retention under tillage. Moreover, both treatments, incorporating increased despite associated augmentation heterotrophic respiration. Finally, importance environmental conditions balance suggests modelling very useful specific agro‐pedoclimatic contexts, especially when facing

Language: Английский

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Responses of soil organic carbon and crop yields to 33-year mineral fertilizer and straw additions under different tillage systems

Soil and Tillage Research, Journal Year: 2021, Volume and Issue: 209, P. 104943 - 104943

Published: Jan. 29, 2021

Language: Английский

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Biodegradable film mulching combined with straw incorporation can significantly reduce global warming potential with higher spring maize yield

Agriculture Ecosystems & Environment, Journal Year: 2022, Volume and Issue: 340, P. 108181 - 108181

Published: Sept. 24, 2022

Language: Английский

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Agricultural cultivation duration affects soil inorganic N turnover and supply capacity: Evidence in subtropical karst regions

Agriculture Ecosystems & Environment, Journal Year: 2025, Volume and Issue: 381, P. 109462 - 109462

Published: Jan. 8, 2025

Language: Английский

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