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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Seasonal effects on ammonia, nitrous oxide, and methane emissions for beef cattle excreta and urea fertilizer applied to a tropical pasture

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Cardoso, Abmael da Silva [1] ; Oliveira, Serena Capriogli [1] ; Janusckiewicz, Estella Rosseto [2] ; Brito, Liziane Figueiredo [1] ; Morgado, Eliane da Silva [3] ; Reis, Ricardo Andrade [1] ; Ruggieri, Ana Claudia [1]
Total Authors: 7
[1] UNESP Univ Estadual Paulista, Fac Ciencias Agr & Vet, Dept Zootecnia, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP - Brazil
[2] Univ Estadual Mato Grosso Sul, Rodovia Aquidauana UEMS Km 12, BR-79200970 Aquidauana, MS - Brazil
[3] Univ Fed Uberlandia, Rua Joao Naves Avila 2121, BR-38408100 Uberlandia, MG - Brazil
Total Affiliations: 3
Document type: Journal article
Source: SOIL & TILLAGE RESEARCH; v. 194, NOV 2019.
Web of Science Citations: 1

In this study we conducted four field trials (two wet- and two dry-season) to quantify N2O and CH4 emissions, NH3 volatilization, and N2O emission factors (EF3PRP) following the application of cattle dung, urine, dung plus urine, and urea fertilizer on a palisade-grass pastureland in Brazil. The EF3PRP differed with treatment and season. Wet season EF3PRP were 0.36%, 1.02%, and 0.84% and dry season EF3PRP were 0.32%,0.47%, and 0.34% for dung, urine, and dung plus urine, respectively. These emission factors are maybe lower than the default proposed by the Intergovernmental Panel on Climate Change (IPCC; 2%). Methane emissions also differed according to the treatment and season, and annualized dung emissions were 0.54 kg CH4 head(-1) year(-1). The fraction of total-N from animal manure and urine emitted as NH3 (FracGASM) in the wet season for dung, urine and dung plus urine was 7.2%, 6.3%, and 6.4%, respectively; lower than the rate of dry season volatilization from urine (14.2%) and dung plus urine (11.5%). Observed FracGASM is probably lower than the IPCC guideline (20%). Emissions of N2O, CH4, and the volatilization of NH3 after urea treatment were not influenced by season; N2O emissions from urea were 0.85%, CH4 emissions were 112 g CH4-C ha(-1), and N-fertilizer lost as NH3 was 16.9%. The emission factors observed in this experiment differed from the IPCC Guidelines; observed N2O emissions were lower than the guideline (1%), and FracGASF was higher than the 10% guideline. (AU)

FAPESP's process: 12/06718-8 - Nitrogen balance, emission of greenhouse gases and mitigation of N2O in the production of beef cattle grazing.
Grantee:Abmael da Silva Cardoso
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 11/00060-8 - GHG full account and mitigation strategies in Brachiaria pastures submitted to different management
Grantee:Telma Teresinha Berchielli
Support type: Research Projects - Thematic Grants
FAPESP's process: 13/00204-5 - Ammonia volatilization and N2O emissions due beef cattle excretion in grassland
Grantee:Serena Capriogli Oliveira
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 13/24782-8 - The effect of biochar on the contribution of nitrification and denitrification to the flux of N2O in tropical and temperate soil
Grantee:Abmael da Silva Cardoso
Support type: Scholarships abroad - Research Internship - Doctorate