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dc.creatorPérez Castillo, Ana Gabriela
dc.creatorChinchilla Soto, Isabel Cristina
dc.creatorElizondo Salazar, Jorge Alberto
dc.creatorBarboza Mora, Ronny
dc.creatorKim, Dong-Gill
dc.creatorMüller, Christoph
dc.creatorSanz Cobena, Alberto
dc.creatorBorzouei, Azam
dc.creatorDawar, Khadim
dc.creatorZaman, Mohammad
dc.date.accessioned2021-10-01T15:04:13Z
dc.date.available2021-10-01T15:04:13Z
dc.date.issued2021
dc.identifier.citationhttps://www.sciencedirect.com/science/article/pii/S1002016020600704
dc.identifier.urihttps://hdl.handle.net/10669/84479
dc.description.abstractUrea is the most common nitrogen (N) fertilizer used in the tropics but it has the risk of high gaseous nitrogen (N) losses. Use of nitrification inhibitor has been suggested as a potential mitigation measure for gaseous N losses in N fertilizer-applied fields. In a field trial on a tropical Andosol pastureland in Costa Rica, gaseous emissions of ammonia (NH3) and nitrous oxide (N2O) and grass yield were quantified from plots treated with urea (U; 41.7 kg N ha–1 application–1) and urea plus the nitrification inhibitor nitrapyrin (U + NI; 41.7 kg N ha–1 application–1 and 350 g of nitrapyrin for each 100 kg of N applied) and control plots (without U and NI) over a six-month period (rainy season). Volatilization of NH3 (August to November) in U (7.4% ± 1.3% of N applied) and U + NI (8.1% ± 0.9% of N applied) were not significantly different (P > 0.05). Emissions of N2O in U and U + NI from June to November were significantly different (P < 0.05) only in October, when N2O emission in U + NI was higher than that in U. Yield and crude protein production of grass were significantly higher (P < 0.05) in U and U + NI than in the control plots, but they were not significantly different between U and U + NI. There was no significant difference in yield-scaled N2O emission between U (0.31 ± 0.10 g N kg–1 dry matter) and U + NI (0.47 ± 0.10 g N kg–1 dry matter). The results suggest that nitrapyrin is not a viable mitigation option for gaseous N losses under typical N fertilizer application practices of pasturelands at the study site.es_ES
dc.description.sponsorshipUniversidad de Costa Rica/[802-B7-505]/UCR/Costa Ricaes_ES
dc.description.sponsorshipOrganización de las Naciones Unidas para la Alimentación y la Agricultura/[No.COS5031]/FAO/Austriaes_ES
dc.description.sponsorshipOrganismo Internacional de Energía Atómica/[No.COS5031]/IAEA/Austriaes_ES
dc.language.isoenges_ES
dc.sourcePedosphere, vol.31(2), pp.265-278es_ES
dc.subjectAmmonia volatilizationes_ES
dc.subjectAndosoles_ES
dc.subjectCosta Ricaes_ES
dc.subjectField triales_ES
dc.subjectGaseous N losses_ES
dc.subjectGreenhouse gas emissiones_ES
dc.subjectUreaes_ES
dc.subjectNITRIFICACIONes_ES
dc.subjectAGRICULTURA TROPICALes_ES
dc.titleNitrification inhibitor nitrapyrin does not affect yiel-scaled nitrous oxide emissions in a tropical grassalandes_ES
dc.typeartículo científico
dc.identifier.doi10.1016/S1002-0160(20)60070-4
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro en Investigación en Contaminación Ambiental (CICA)es_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Agroalimentarias::Estación Experimental de Ganado Lechero Alfredo Volio Mata (EEAVM)es_ES
dc.identifier.codproyecto802-B7-505


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