Data/hora: 14/06/2024 11:22:21

Biblioteca(s): 	Embrapa Clima Temperado.	
Data corrente: 	15/03/2023	
Data da última atualização: 	15/03/2023	
Autoria: 	NUNES, R. S. G.; DELOSS, A. DE M.; MARTINAZZO, R.; BAMBERG, A. L.; SILVEIRA, C. A. P.; BAYER, C.; SANTOS, D. C. DOS; VIEIRA, F. C. B.	
Afiliação: 	ROSANGELA SILVA GONCALVES NUNES, UNIVERSIDADE FEDERAL DO PAMPA; ALISSON DE MELLO DELOSS, UNIVERSDIDADE FEDERAL DO PAMPA; ROSANE MARTINAZZO, CPACT; ADILSON LUIS BAMBERG, CPACT; CARLOS AUGUSTO POSSER SILVEIRA, CPACT; CIMELIO BAYER, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; DAIANE CARVALHO DOS SANTOS, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; FREDERICO COSTA BEBER VIEIRA, UNIVERSIDADE FEDERAL DO PAMPA.	
Título: 	Mitigation of ammonia and greenhouse gases emissions from urea coated with oil shale residues in a silvopastoral system.	
Ano de publicação: 	2023	
Fonte/Imprenta: 	Journal of Environmental Management, v. 326, 116779, 2023.	
ISSN: 	0301-4797	
Idioma: 	Inglês	
Conteúdo: 	The objective of this work was to investigate the viability of using retorted oil shale as urea coating (U + ROS) in the decrease of N losses by ammonia (NH3?N) volatilization. The experiment was carried out in a silvopastoral system with a randomized block design with split-plots. The main treatments consisted of spatial arrangements of the trees, while the subdivision of the plots constituted the surface application of common urea (U) and retorted oil shale-coated urea (U + ROS) for the pasture. In addition to NH3 measurements, fluxes of N2O and CH4 in the soil were determined, as well as soil moisture and contents of mineral N (0?5 cm). Independently of tree spacing, the use of ROS along with urea (U + ROS) showed a mean decrease of 15.9% in the accumulated NH3 volatilization and 24.1% in the peaks of emission, although it was not significantly different from the U treatment (P <0.10). In addition, it did not increase significantly the N2O and CH4 emissions, evidencing a potential to decrease N losses by ammonia volatilization, with no impact on greenhouse gases emissions from the soil.	
Palavras-Chave: 	Xisto betuminoso.	
Thesagro: 	Fertilizante Nitrogenado; Metano.	
Thesaurus Nal: 	Oil shale.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Clima Temperado (CPACT)	
Exemplares: 	CPACT - (22555-1) - UPC - AP - DD -  -  -  - DIS