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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A novel additive promoting lignocellulose alkali pretreatment for its “two birds with one stone” role

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152220 - 152220

Published: May 13, 2024

Language: Английский

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Nitrogen dynamics as a function of soil types, compaction, and moisture

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(4), P. e0301296 - e0301296

Published: April 4, 2024

In this study, the complex interactions between soil types, compaction, and moisture on nitrogen (N) transformation processes such as ammonia (NH 3 ) volatilization, ammonification, nitrification, denitrification were examined over a 30-day period using simulated column approach. Two types: loam, sandy subjected to three compaction treatments—control, surface, sub-surface compaction—and two regimes, dry wet. Liquid urea ammonium nitrate (32-0-0) was used N fertilizer source at rate of 200 kg ha -1 . Key indicators transformations measured, including residual concentrations 4 -N) (NO -N), NO -N leaching, NH nitrous oxide (N 2 O) emissions. Findings revealed that significantly increased in deeper profiles, with highest 190.80 mg recorded loam under conditions. Nitrification rates decreased across both types due evidenced by elevated levels. Increased leaching observed (178.06 L ), greater than (81.11 initial higher - soil. The interaction most affected O emissions, emissions control treatments during weather 2.88 Additionally, volatilization noted moist conditions 19.64 These results highlight necessity considering texture, moisture, implementing sustainable management strategies agriculture suggest recommendations avoiding broadcast application mitigate enhance use efficiency, well advocating for readjustment based organic matter content reduce potential particularly

Language: Английский

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The impact of continuous cultivation of Ganoderma lucidum on soil nutrients, enzyme activity, and fruiting body metabolites

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: May 2, 2024

Abstract To explore the impacts of continuous Ganoderma lucidum cultivation on soil physicochemical factors, enzyme activity, and metabolome fruiting bodies, this study conducted two consecutive years same plot land. Soil factors activity were assessed, alongside non-targeted metabolomic analysis bodies under cultivation. The findings unveiled that in surface layer (0–15 cm), there was a declining trend organic matter, ammonium nitrogen, available phosphorus, potassium, pH, polyphenol oxidase, peroxidase, alkaline phosphatase, sucrase, whereas nitrate electrical conductivity (EC), salt content exhibited an upward trend. Conversely, deeper (15–30 sucrase demonstrated decreasing trend, while EC, content, peroxidase showed increasing Metabolomic distinguished 64 significantly different metabolites between GCK GT groups, with 39 components having markedly higher relative contents 25 lower compared to GT. Moreover, among these metabolites, more types harvested first year (GCK) those second (GT), pronounced differences. KEGG pathway revealed complex metabolic pathways predominantly influenced by activity. In affected differences catalase, sucrase.

Language: Английский

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Optimizing combination of chemical nitrogen fertilizer and manure can increase yield and economic benefits of dryland wheat while reduce environmental risks

European Journal of Agronomy, Journal Year: 2024, Volume and Issue: 159, P. 127272 - 127272

Published: July 16, 2024

Language: Английский

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Nitrogen (N) “supplementation, slow release, and retention” strategy improves N use efficiency via the synergistic effect of biochar, nitrogen-fixing bacteria, and dicyandiamide

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 908, P. 168518 - 168518

Published: Nov. 13, 2023

Language: Английский

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Optimizing crop yields while minimizing environmental impact through deep placement of nitrogen fertilizer

Journal of Integrative Agriculture, Journal Year: 2024, Volume and Issue: unknown

Published: May 1, 2024

Nitrogen (N) serves as an essential nutrient for yield formation across diverse crop types. However, agricultural production encounters numerous challenges, notably high N fertilizer rates coupled with low use efficiency and serious environmental pollution. Deep placement of nitrogen (DPNF) is agronomic measure that shows promise in addressing these issues. This review aims to offer a comprehensive understanding DPNF, beginning succinct overview its development methodologies implementation. Subsequently, the optimal fertilization depth influencing factors different crops are analyzed discussed. Additionally, it investigates regulation mechanism underlying DPNF on development, yield, greenhouse gas emissions. Finally, delineates limitations challenges this technology provides suggestions improvement application. valuable insight reference promotion adoption practice.

Language: Английский

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Ammonium Nitrate Fertilization Increases the Crude Protein Content and Wheat Grain Yield in Subtropical Conditions

Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: 24(3), P. 4952 - 4964

Published: June 26, 2024

Language: Английский

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Carbon dioxide fluxes and carbon budget of a sugarcane ecosystem with crop residue returning in South China

Field Crops Research, Journal Year: 2025, Volume and Issue: 322, P. 109744 - 109744

Published: Jan. 9, 2025

Language: Английский

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Ca2 + substitution synergises zeolite physisorption accelerated Na+ substitution to improve saline soils

Soil and Tillage Research, Journal Year: 2025, Volume and Issue: 248, P. 106461 - 106461

Published: Jan. 18, 2025

Language: Английский

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