Management‐induced changes in soil organic carbon and related crop yield dynamics in China's cropland

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(13), P. 3575 - 3590

Published: April 6, 2023

Enhancing soil organic carbon (SOC) sequestration and food supply are vital for human survival when facing climate change. Site-specific best management practices (BMPs) being promoted adoption globally as solutions. However, how SOC crop yield related to each other in responding BMPs remains unknown. Here, path analysis based on meta-analysis machine learning was conducted identify the effects potential mechanisms of relationship between responds site-specific China. The results showed that could significantly enhance maintain or increase yield. maximum benefits (30.6%) (79.8%) occurred mineral fertilizer combined with inputs (MOF). Specifically, optimal would be achieved areas were arid, pH ≥7.3, initial content ≤10 g kg-1 , duration >10 years, nitrogen (N) input level 100-200 kg ha-1 . Further revealed original change an inverted V-shaped structure. association changes might linked positive role nutrient-mediated effect. generally suggested improving can strongly support better performance. Limitations increasing still exist due low level, regions where excessive N inputs, inappropriate tillage is inadequate diminished by optimizing harmony conditions.

Language: Английский

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Partial organic substitution for synthetic fertilizer improves soil fertility and crop yields while mitigating N2O emissions in wheat-maize rotation system

European Journal of Agronomy, Journal Year: 2024, Volume and Issue: 154, P. 127077 - 127077

Published: Jan. 5, 2024

Language: Английский

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Biogeochemical constraints on climate change mitigation through regenerative farming

Biogeochemistry, Journal Year: 2022, Volume and Issue: 161(1), P. 9 - 17

Published: June 14, 2022

Language: Английский

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Twenty percent of agricultural management effects on organic carbon stocks occur in subsoils – Results of ten long-term experiments

Agriculture Ecosystems & Environment, Journal Year: 2023, Volume and Issue: 356, P. 108619 - 108619

Published: June 7, 2023

Agricultural management can influence soil organic carbon (SOC) stocks and thus may contribute to sequestration climate change mitigation. The depth which agricultural practices affect SOC is uncertain. Soil have an important bearing on dynamics, so it consider effects capture fully changes in stocks. This applies particular the evaluation of farming measures, are becoming increasingly due change. We sampled analysed upper metre mineral cropland soils from ten long-term experiments (LTEs) Germany quantify depth-specific common practices: nitrogen (N) fertilisation, a combination N, phosphorus (P) potassium (K) irrigation, crop rotation with preceding crops (pre-crops), straw incorporation, application farmyard manure (FYM), liming, reduced tillage. In addition, compaction were examined as negative side effect management. Results showed that 19 ± 3 % total found subsoil (30–50 cm) 4 lower (50–100 cm), including all significant topsoil effects, while 79 7 (0–30 cm). Nitrogen NPK fertilisation treatments had greatest (OC) stocks, followed by FYM incorporation. Sampling down 50 cm resulted significantly higher than when considering only. A pre-crops, tillage did not at any increment. Since approximately 20 impact occurs subsoil, we recommend monitoring programs schemes extend their standard sampling SOC.

Language: Английский

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Organic amendment effects on cropland soil organic carbon and its implications: A global synthesis

CATENA, Journal Year: 2023, Volume and Issue: 231, P. 107343 - 107343

Published: June 26, 2023

Language: Английский

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Comprehensive impacts of different integrated rice-animal co-culture systems on rice yield, nitrogen fertilizer partial factor productivity and nitrogen losses: A global meta-analysis

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 915, P. 169994 - 169994

Published: Jan. 19, 2024

Language: Английский

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Co-benefits for net carbon emissions and rice yields through improved management of organic nitrogen and water

Nature Food, Journal Year: 2024, Volume and Issue: 5(3), P. 241 - 250

Published: March 14, 2024

Language: Английский

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Nitrogen addition-driven soil organic carbon stability depends on the fractions of particulate and mineral-associated organic carbon

Nutrient Cycling in Agroecosystems, Journal Year: 2024, Volume and Issue: 128(2), P. 269 - 281

Published: March 23, 2024

Language: Английский

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Carbon and nutrient release from anaerobic digestate solids applied as a soil amendment

Soil Science Society of America Journal, Journal Year: 2025, Volume and Issue: 89(2)

Published: March 1, 2025

Abstract Anaerobic digestion can produce renewable natural gas and is a viable alternative to conventional sources. When anaerobic digesters are coupled with agricultural systems, the resulting digestate solids (ADS) after biogas production be applied fields as fertilizer an organic soil amendment. Therefore, ADS potentially increase carbon (SOC) stock improve fertility. To better understand impacts of on SOC accumulation nutrient release, we conducted 120‐day laboratory incubation using four rates (0, 2.5, 5, 10 Mg C ha −1 ) in typical loamy sandy soils Iowa. We measured respired CO 2 ‐C, δ 13 dissolved reactive phosphorus (DRP), extractable nitrogen (N). ADS‐derived increased, but SOC‐derived decreased rate indicating negative priming effect (average −78%). The balance soil, defined inputs minus respiration, significantly increased rates. Using reasonable bulk density mixing depth assumptions, applying medium would accumulate more than (3 vs. 2.2 ). Extractable N DRP release were affected by opposite directions. while additions. conclude that bioavailable source nutrients for microbes decreases short‐term inorganic N, increases availability, leads accrual.

Language: Английский

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Which policy is preferred by crop farmers when replacing synthetic fertilizers by manure? A choice experiment in China

Resources Conservation and Recycling, Journal Year: 2022, Volume and Issue: 180, P. 106176 - 106176

Published: Jan. 20, 2022

Language: Английский

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