Emission of greenhouse gases from an agricultural soil amended with urea: A laboratory study

Serrano-Silva, Nancy; Luna‐Guido, Marco; Fernández-Luqueño, F.; Marsch, Rodolfo; Dendooven, Luc

doi:10.1016/j.apsoil.2010.11.012

Cited by 40 publications

(24 citation statements)

References 41 publications

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“…Tillage systems, cropping systems and N fertilization affect all these soil variables and thus can deeply affect soil N 2 O emissions (Rochette et al, 2004;Jantalia et al, 2008;Jarecki et al, 2009;Frimpong and Baggs, 2010;Hoben et al, 2011). Legume-based cropping systems (Bavin et al, 2009;Jarecki et al, 2009;Gomes et al, 2009) and mineral N fertilization (Hoben et al, 2011;Serrano-Silva et al, 2014) usually increase soil N 2 O emissions due NO 3 À and NH 4 + increments, but few studies compared the impact of biologically-fixed N against mineral N on N 2 O emissions (Delgado et al, 2010;Frimpong and Baggs, 2010). As a reference value, in average 0.9-1.0% of the applied N as mineral or organic source is emitted as N 2 O in agricultural soils (IPCC, 2006;Stehfest and Bouwman, 2006).…”

Section: Introductionmentioning

confidence: 99%

Soil nitrous oxide emissions as affected by long-term tillage, cropping systems and nitrogen fertilization in Southern Brazil

Bayer

Gomes

Zanatta

et al. 2015

Soil and Tillage Research

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Section: Introductionmentioning

confidence: 99%

Soil nitrous oxide emissions as affected by long-term tillage, cropping systems and nitrogen fertilization in Southern Brazil

Bayer

Gomes

Zanatta

et al. 2015

Soil and Tillage Research

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“…A total of 100 g of urea-N g DWS Ϫ1 was pulsed into the soil once a week to establish a substrate-rich environment for nitrifying communities over the incubation period of 56 days. Urea was the main N fertilizer used during growing seasons, which was believed to be immediately hydrolyzed by extracellular ureases into ammonia and carbon dioxide, both of which allow ammonia oxidization in soils (19,20). The 12-day preincubation was performed so that the soil-respired CO 2 would remain at a consistently low level during the entire period of incubation.…”

Section: Methodsmentioning

confidence: 99%

Phylogenetically Distinct Phylotypes Modulate Nitrification in a Paddy Soil

Zhao

Wang

Jia

2015

Appl Environ Microbiol

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Paddy fields represent a unique ecosystem in which regular flooding occurs, allowing for rice cultivation. However, the taxonomic identity of the microbial functional guilds that catalyze soil nitrification remains poorly understood. In this study, we provide molecular evidence for distinctly different phylotypes of nitrifying communities in a neutral paddy soil using highthroughput pyrosequencing and DNA-based stable isotope probing (SIP). Following urea addition, the levels of soil nitrate increased significantly, accompanied by an increase in the abundance of the bacterial and archaeal amoA gene in microcosms subjected to SIP (SIP microcosms) during a 56-day incubation period. High-throughput fingerprints of the total 16S rRNA genes in SIP microcosms indicated that nitrification activity positively correlated with the abundance of Nitrosospira-like ammonia-oxidizing bacteria (AOB), soil group 1.1b-like ammonia-oxidizing archaea (AOA), and Nitrospira-like nitrite-oxidizing bacteria (NOB). Pyrosequencing of 13 C-labeled DNA further revealed that 13 CO 2 was assimilated by these functional groups to a much greater extent than by marine group 1.1a-associated AOA and Nitrobacter-like NOB. Phylogenetic analysis demonstrated that active AOB communities were closely affiliated with Nitrosospira sp. strain L115 and the Nitrosospira multiformis lineage and that the 13 C-labeled AOA were related to phylogenetically distinct groups, including the moderately thermophilic "Candidatus Nitrososphaera gargensis," uncultured fosmid 29i4, and acidophilic "Candidatus Nitrosotalea devanaterra" lineages. These results suggest that a wide variety of microorganisms were involved in soil nitrification, implying physiological diversification of soil nitrifying communities that are constantly exposed to environmental fluctuations in paddy fields. Rice feeds over half of the world's population and is usually considered the most important food source in Asia (1). China has approximately 29.2 million ha of rice fields, accounting for 35.8% of the grain-sowing area (2, 3). China is indeed the largest producer of rice on the planet, and the yield production of rice accounts for 43.7% of the total national grain production (4). The growth and production of rice crops depend heavily on anthropogenic management such as irrigation and fertilization. The intensified application of synthetic N fertilizers has increased significantly over the past decades to meet the demand for food productivity in China (5). The excessively high load often leads to the saturation of nitrogen nutrients in paddy soils and causes severe environmental pollution (6).Flood management is the most dominant regime for growing semiaquatic rice plants (7). Irrigated paddy fields thus may serve as a model system for studying the microbial ecology of nitrifying communities in terrestrial environments (8). Nitrification is executed by functional microbial guilds, including ammonia-oxidizing bacteria and archaea (AOB and AOA, respectively), as well as nitrite-oxidizing bacteria...

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“…org/ifa/homepage/statistics). Because elemental C content of urea ((NH2)2CO) is 20% that is converted to CO2 during urea hydrolysis ((NH2)2CO＋3H2O → 2NH4 ＋＋CO2＋2OH -), application of urea as a N fertilizer may further increase CO2 emission from the soil (Choi et al, 2007;Jassal et al, 2010;Serrano-Silva et al, 2011). However, as far as our knowledge, no attempt has been made to investigate soil CO2 emission responses to increasing rate of urea fertilization.…”

Section: Open Access Research Articlementioning

confidence: 95%

“…The values are the means of triplicates and the vertical bars are standard deviations of the means. uniform rate over the incubation period (Serrano-Silva et al, 2011). The refined data on cumulative CO2-C evolution (Ccum) was fitted to the single exponential first-order kinetic model, Ccum＝C0[1-exp(-kt)], with the Fit Curve procedures of SigmaPlot 10.0 (Systat Software Inc., IL), which uses the Marquardt-Levenberg algorithm and an iterative process to determine the parameter values that minimize the residual sum of squares (Boyle and Paul, 1989;Ajwa and Tabatabai, 1994).…”

Section: Co 2 Measurement and Kinetic Model Fittingmentioning

confidence: 99%

Kinetic Responses of Soil Carbon Dioxide Emission to Increasing Urea Application Rate

Lee¹,

Lim²,

Lee³

et al. 2011

Korean Journal of Environmental Agriculture

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BACKGROUND: Application of urea may increase CO 2 emission from soils due both to CO 2 generation from urea hydrolysis and fertilizer-induced decomposition of soil organic carbon (SOC). The objective of this study was to investigate the effects of increasing urea application on CO 2 emission from soil and mineralization kinetics of indigenous SOC. METHODS AND RESULTS: Emission of CO 2 from a soil amended with four different rates (0, 175, 350, and 700 mg N/kg soil) of urea was investigated in a laboratory incubation experiment for 110 days. Cumulative CO 2 emission (C cum ) was linearly increased with urea application rate due primarily to the contribution of urea-C through hydrolysis to total CO 2 emission. First-order kinetics parameters (C 0 , mineralizable SOC pool size; k, mineralization rate) became greater with increasing urea application rate; C 0 increased from 665.1 to 780.3 mg C/kg and k from 0.024 to 0.069 day

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Emission of greenhouse gases from an agricultural soil amended with urea: A laboratory study

Cited by 40 publications

References 41 publications

Soil nitrous oxide emissions as affected by long-term tillage, cropping systems and nitrogen fertilization in Southern Brazil

Soil nitrous oxide emissions as affected by long-term tillage, cropping systems and nitrogen fertilization in Southern Brazil

Phylogenetically Distinct Phylotypes Modulate Nitrification in a Paddy Soil

Kinetic Responses of Soil Carbon Dioxide Emission to Increasing Urea Application Rate

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