Effect of animal manure, crop type, climate zone, and soil attributes on greenhouse gas emissions from agricultural soils—A global meta-analysis

Journal of Cleaner Production, Journal Year: 2020, Volume and Issue: 278, P. 124019 - 124019

Published: Sept. 4, 2020

Language: Английский

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A global meta-analysis of greenhouse gases emission and crop yield under no-tillage as compared to conventional tillage

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 750, P. 142299 - 142299

Published: Sept. 13, 2020

Language: Английский

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Impacts of agronomic measures on crop, soil, and environmental indicators: A review and synthesis of meta-analysis

Agriculture Ecosystems & Environment, Journal Year: 2021, Volume and Issue: 319, P. 107551 - 107551

Published: July 7, 2021

Sustainable agricultural management implies optimization of resources for crop production while minimizing adverse impacts on the environment. This requires a better understanding synergies and trade-offs agronomic accounting controlling effects site-specific factors (covariates). We systematically evaluated 113 meta-analytical studies assessing measures (rotation, cover cropping, residue retention), soil water (irrigation, tillage), amendments (enhanced efficiency, biochar), fertilizer use (organic, mineral, combined organic-mineral) "4R'" strategies (right source, rate, timing, placement) sustainability indicators. These indicators include yield, N P (content, uptake, efficiency), quality (soil organic C, contents, compaction), emissions ammonia (NH3) greenhouse gases (CO2, N2O), nutrient losses to (N surplus or leaching). Nutrient management, including 4R practices as well enhanced efficiency amendments, had largest impact, increasing yields uptake reducing N2O NH3 surplus, whereas CO2 were variable. Although all positively impacted effect was due biochar, followed by input. Biochar diminished increased emissions. Within only cropping significant positive both crops rotation slightly sequestration C in soil, thus surplus. Minimal tillage generally SOC, results Site-specific substantial measures, most importantly climate, type, texture, pH, dose, experimental duration. Considering variation among protocols followed, we recommend that field work adhere harmonized guidelines with respect reporting site-level data, design, statistical procedures used. will ensure data comparability between studies, improve meta-analysis results, give insights into currently uncertain unknown measures.

Language: Английский

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Management Strategies to Mitigate N2O Emissions in Agriculture

Life, Journal Year: 2022, Volume and Issue: 12(3), P. 439 - 439

Published: March 17, 2022

The concentration of greenhouse gases (GHGs) in the atmosphere has been increasing since beginning industrial revolution. Nitrous oxide (N2O) is one mightiest GHGs, and agriculture main sources N2O emissions. In this paper, we reviewed mechanisms triggering emissions role agricultural practices their mitigation. amount produced from soil through combined processes nitrification denitrification profoundly influenced by temperature, moisture, carbon, nitrogen oxygen contents. These factors can be manipulated to a significant extent field management practices, influencing emission. relationships between occurrence regulating it are an important premise for devising mitigation strategies. Here, evaluated various options literature found that effectively reduced intervening on time method N supply (30–40%, with peaks up 80%), tillage irrigation (both non-univocal way), use amendments, such as biochar lime (up slow-release fertilizers and/or inhibitors 50%), plant treatment arbuscular mycorrhizal fungi 75%), appropriate crop rotations schemes integrated nutrient (in way). conclusion, acting (fertilizer type, dose, time, method, etc.) most straightforward way achieve reductions without compromising yields. However, tuning rest (tillage, irrigation, rotation, principles good also advisable, fetch abatement vs. risk unexpected rise, which incurred unwary management.

Language: Английский

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A global meta-analysis of crop yield and agricultural greenhouse gas emissions under nitrogen fertilizer application

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 831, P. 154982 - 154982

Published: April 4, 2022

Language: Английский

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A global meta‐analysis of yield‐scaled N₂O emissions and its mitigation efforts for maize, wheat, and rice

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(2)

Published: Feb. 1, 2024

Abstract Maintaining or even increasing crop yields while reducing nitrous oxide (N 2 O) emissions is necessary to reconcile food security and climate change, the metric of yield‐scaled N O emission (i.e., per unit yield) at present poorly understood. Here we conducted a global meta‐analysis with more than 6000 observations explore variation patterns controlling factors for maize, wheat rice associated potential mitigation options. Our results showed that average across all available data followed order (322 g Mg −1 , 95% confidence interval [CI]: 301–346) > maize (211 CI: 198–225) (153 144–163). Yield‐scaled individual crops were generally higher in tropical subtropical zones temperate zones, also trend towards lower intensities from low high latitudes. This was better explained by climatic edaphic fertilizer management, their combined effect predicted 70% variance. Furthermore, our analysis significant decrease use efficiency production systems cereal >10 ha (maize), 6.6 (wheat) 6.8 (rice), respectively. highlights indicators can be used as valuable proxies reconciling trade‐offs between mitigation. For three major staple crops, fertilization up 30%, optimizing timing placement application using enhanced‐efficiency fertilizers significantly reduced similar yields. data‐driven assessment provides some key guidance developing effective targeted adaptation strategies sustainable intensification production.

Language: Английский

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Biogeochemical transformation of greenhouse gas emissions from terrestrial to atmospheric environment and potential feedback to climate forcing

Environmental Science and Pollution Research, Journal Year: 2020, Volume and Issue: 27(31), P. 38513 - 38536

Published: Aug. 7, 2020

Language: Английский

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Nitrous oxide emission from agricultural soils: Application of animal manure or biochar? A global meta-analysis

Journal of Environmental Management, Journal Year: 2021, Volume and Issue: 285, P. 112170 - 112170

Published: Feb. 17, 2021

Organic amendments (animal manure and biochar) to agricultural soils may enhance soil organic carbon (SOC) contents, improve fertility crop productivity but also contribute global warming through nitrous oxide (N2O) emission. However, the effects of on N2O emissions from seem variable among numerous research studies remains uncertain. Here, eighty-five publications (peer-reviewed) were selected perform a meta-analysis study. The results this study show that application animal enhanced by 17.7%, whereas, biochar amendment significantly mitigated 19.7%. Moreover, coarse textured increased [lnRR‾ = 182.6%, 95% confidence interval (CI) 151.4%, 217.7%] emission after manure, in contrast, 7.0% amendment. In addition, found 121-320 kg N ha-1 ⩽ 30 T rates 72.3% 22.5%, respectively. Soil pH played vital role regulating amendments. Furthermore, > 10 C: ratios 121.4% 27.6% amendments, Overall, emissions, while, ratio had not shown any effect emissions. average factors (EFs) for 0.46% -0.08%, Thus, provide scientific evidence about how such as soils.

Language: Английский

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Does biochar accelerate the mitigation of greenhouse gaseous emissions from agricultural soil? - A global meta-analysis

Environmental Research, Journal Year: 2021, Volume and Issue: 202, P. 111789 - 111789

Published: July 29, 2021

Language: Английский

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Twice-split application of controlled-release nitrogen fertilizer met the nitrogen demand of winter wheat

Field Crops Research, Journal Year: 2021, Volume and Issue: 267, P. 108163 - 108163

Published: May 3, 2021

Language: Английский

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