EFFECT OF BOVINE URINE ON NITROUS OXIDE FLUXES FROM THREE PASTURES IN PIEDMONT PLAINS OF LLANOS ORIENTALES, COLOMBIA

Garzon, J E; Pardo Barbosa, Oscar; Ciganda, V S; Cardenas, E A

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Date

2017

Author

Garzon, J E

Pardo Barbosa, Oscar

Ciganda, V S

Cardenas, E A

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Universidad Nacional de Colombia

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Abstract

ColombiaisoneofthecountrieswiththehighestlivestockinventoryofLatinAmerica, muchofwhichisunderextensivegrazingofBrachiariaspp.,Megathyrsusmaximus andnativepastures. Thequantitative contributionof this sector toour national GreenhouseGases(GHGs)emissions,particularlynitrousoxide(N2O)emissions,need abetterapproachtoreal fluxes. SomeBrachiariaspeciesarenatural producersof BiologicalNitrificationInhibitors(BNI),whichareanalternativemitigationofGHGsin field.However, not all tropical grassesproducethesamequantityofBNI (1). The objectiveof this researchwas toquantifyN2Oemissions fromruminant urine in differentpasturesbothduringdryandrainyseasons.