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Sci Rep

Title:		Adequate vegetative cover decreases nitrous oxide emissions from cattle urine deposited in grazed pastures under rainy season conditions
Author(s):		Chirinda N; Loaiza S; Arenas L; Ruiz V; Faverin C; Alvarez C; Savian JV; Belfon R; Zuniga K; Morales-Rincon LA; Trujillo C; Arango M; Rao I; Arango J; Peters M; Barahona R; Costa C; Rosenstock TS; Richards M; Martinez-Baron D; Cardenas L;
Address:		"International Center for Tropical Agriculture (CIAT), A.A, 6713, Cali, Colombia. n.chirinda@cgiar.org. International Center for Tropical Agriculture (CIAT), A.A, 6713, Cali, Colombia. National Autonomous University of Nicaragua, Managua, Nicaragua. National Institute of Agricultural Technology (INTA), Balcarce, Argentina. National Institute of Agricultural Technology (INTA), Manfredi, Argentina. Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil. The University of the West Indies, St. Augustine, Trinidad and Tobago. Universidad Nacional de Colombia, sede Palmira, Colombia. Universidad Nacional de Colombia, Bogota, Colombia. The Colombian Corporation for Agricultural Research (AGROSAVIA), Villavicencio, Meta, Colombia. Plant Polymer Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, United States Department of Agriculture, 1815 North University Street, Peoria, IL, 61604, USA. Universidad Nacional de Colombia, Medellin, Colombia. Institute of Agriculture and Forestry Management and Certification (IMAFLORA), Estrada Chico Mendes, Piracicaba, Estrada Chico Mendes,185, 13426-420, Brazil. World Agroforestry Center (ICRAF), c/o INERA, Avenue des cliniques, Kinshasa, Democratic Republic of the Congo. Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, VT, 05405, USA. Rothamsted Research, Sustainable Agriculture Sciences Department, North Wyke, Devon, EX20 2SB, UK"
Journal Title:		Sci Rep
Year:		2019
Volume:		20190129
Issue:		1
Page Number:		908 -
DOI:		10.1038/s41598-018-37453-2
ISSN/ISBN:		2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:		"A decline in pasture productivity is often associated with a reduction in vegetative cover. We hypothesize that nitrogen (N) in urine deposited by grazing cattle on degraded pastures, with low vegetative cover, is highly susceptible to losses. Here, we quantified the magnitude of urine-based nitrous oxide (N(2)O) lost from soil under paired degraded (low vegetative cover) and non-degraded (adequate vegetative cover) pastures across five countries of the Latin America and the Caribbean (LAC) region and estimated urine-N emission factors. Soil N(2)O emissions from simulated cattle urine patches were quantified with closed static chambers and gas chromatography. At the regional level, rainy season cumulative N(2)O emissions (3.31 versus 1.91 kg N(2)O-N ha(-1)) and emission factors (0.42 versus 0.18%) were higher for low vegetative cover compared to adequate vegetative cover pastures. Findings indicate that under rainy season conditions, adequate vegetative cover through proper pasture management could help reduce urine-induced N(2)O emissions from grazed pastures"
Keywords:		Agriculture Animals Caribbean Region Cattle *Environment Environmental Monitoring *Herbivory Latin America Nitrous Oxide/*urine *Rain *Seasons Soil/*chemistry;
Notes:		"MedlineChirinda, Ngonidzashe Loaiza, Sandra Arenas, Laura Ruiz, Veronica Faverin, Claudia Alvarez, Carolina Savian, Jean Victor Belfon, Renaldo Zuniga, Karen Morales-Rincon, Luis Alberto Trujillo, Catalina Arango, Miguel Rao, Idupulapati Arango, Jacobo Peters, Michael Barahona, Rolando Costa, Ciniro Jr Rosenstock, Todd S Richards, Meryl Martinez-Baron, Deissy Cardenas, Laura eng BBS/E/C/000I0320/BB_/Biotechnology and Biological Sciences Research Council/United Kingdom Research Support, Non-U.S. Gov't England 2019/01/31 Sci Rep. 2019 Jan 29; 9(1):908. doi: 10.1038/s41598-018-37453-2"