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dc.contributor.authorRAMOS, M. L. G.
dc.contributor.authorCOSTA, A. R. da
dc.contributor.authorMADARI, B. E.
dc.contributor.authorCARVALHO, G. D.
dc.contributor.authorPEREIRA, A. C. de C.
dc.contributor.authorCORRÊA, R. S.
dc.contributor.authorSOUSA, T. R. de
dc.contributor.authorCARVALHO, A. M. de
dc.date.accessioned2024-10-17T11:53:23Z-
dc.date.available2024-10-17T11:53:23Z-
dc.date.created2024-10-17
dc.date.issued2024
dc.identifier.citationAgronomy, v. 14, 1257, June 2024.
dc.identifier.issn2073-4395
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1168140-
dc.descriptionAn important source of greenhouse gases in Brazil is the nitrous oxide (N2O) emission from pasture, and microorganisms play an important role in nitrogen transformations in the soil. This study aimed to evaluate N2O emission and NH3 volatilization from bovine excreta in pasture in an integrated crop–livestock system (ICL) in the Brazilian Cerrado. Three treatments (urine, dung and control) were performed in two pastures (Area 1—three-year pasture of Urochloa ruziziensis and Area 2—one-year pasture of Urochloa brizantha cv. Piatã), with two application times of the excreta (dry and rainy season), during two successive years of application. Compared to the control, the excreta deposition on ICL increased soil N2O and NH3 fluxes. In the dry season, N2O fluxes were associated with higher ammonium (NH4+) availability. In the rainy season, these fluxes were related to NO3− availability and water-filled pore space (WFPS). In both areas, NH3 volatilization was higher after urine than dung application, especially in the dry season. The highest N2O emission factors were obtained for urine (0.32%), the rainy season (0.36%), and older pasture (Area 1: 0.24%). All these values were below the mean IPCC default values (0.77%). These results indicate that N2O emissions in pasture should be evaluated in regional conditions.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectÓxido nitroso
dc.titleNitrous oxide emissions and ammonia volatilization from pasture after cattle dung and urine applications in the dry and rainy seasons of the brazilian cerrado.
dc.typeArtigo de periódico
dc.subject.thesagroCerrado
dc.subject.thesagroOxido
dc.subject.thesagroAmônia
dc.subject.thesagroEsterco de Gado
dc.subject.thesagroUrina
dc.subject.thesagroManejo do Solo
dc.subject.thesagroNitrato
dc.subject.thesagroPastagem
dc.subject.nalthesaurusNitrous oxide
dc.subject.nalthesaurusAmmonia
dc.subject.nalthesaurusPastures
dc.subject.nalthesaurusCattle manure
dc.subject.nalthesaurusSoil management
dc.subject.nalthesaurusNitrates
riaa.ainfo.id1168140
riaa.ainfo.lastupdate2024-10-17
dc.identifier.doihttps://doi.org/10.3390/agronomy14061257
dc.contributor.institutionMARIA LUCRECIA GEROSA RAMOS, UNIVERSIDADE DE BRASÍLIA; ADRIANA RODOLFO DA COSTA, UNIVERSIDADE ESTADUAL DE GOIÁS; BEATA EMOKE MADARI, CNPAF; GLAUCILENE DUARTE CARVALHO, SECRETARIA GERAL DE GOVERNO DO ESTADO DE GOIÁS; ANA CLAUDIA DE CASTRO PEREIRA, CENTRO UNIVERSITÁRIO DE GOIÁS; RUBIA SANTOS CORRÊA, PALÁCIO PEDRO LUDOVICO TEIXEIRA; THAIS RODRIGUES DE SOUSA, UNIVERSIDADE DE BRASÍLIA; ARMINDA MOREIRA DE CARVALHO, CPAC.
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