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

Global Change Biology, Год журнала: 2024, Номер 30(2)

Опубликована: Фев. 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.

Язык: Английский

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

Chemical Engineering Journal, Год журнала: 2024, Номер 492, С. 152220 - 152220

Опубликована: Май 13, 2024

Язык: Английский

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

PLoS ONE, Год журнала: 2024, Номер 19(4), С. e0301296 - e0301296

Опубликована: Апрель 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

Язык: Английский

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

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Май 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.

Язык: Английский

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

Journal of Integrative Agriculture, Год журнала: 2024, Номер unknown

Опубликована: Май 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.

Язык: 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, Год журнала: 2024, Номер 159, С. 127272 - 127272

Опубликована: Июль 16, 2024

Язык: 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, Год журнала: 2023, Номер 908, С. 168518 - 168518

Опубликована: Ноя. 13, 2023

Язык: Английский

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Nitrification inhibitor induced microbial NH4+-N immobilization improves maize nitrogen use efficiency in strong ammonia oxidation soil

Soil Biology and Biochemistry, Год журнала: 2024, Номер unknown, С. 109687 - 109687

Опубликована: Дек. 1, 2024

Язык: Английский

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Nitrification and urease inhibitors mitigate global warming potential and ammonia volatilization from urea in rice-wheat system in India: A field to lab experiment

The Science of The Total Environment, Год журнала: 2023, Номер 898, С. 165479 - 165479

Опубликована: Июль 17, 2023

Язык: 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, Год журнала: 2024, Номер 24(3), С. 4952 - 4964

Опубликована: Июнь 26, 2024

Язык: Английский

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