6533b826fe1ef96bd1284952

RESEARCH PRODUCT

Inhibitory capacities of acetylene on nitrification in two agricultural soils

Francis GarridoCatherine HénaultJ. C. GermonHervé Gaillard

subject

DenitrificationChemistrySoil Sciencechemistry.chemical_elementNitrous oxide[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil studyMicrobiologyNitrogenchemistry.chemical_compoundWater potentialAgronomyAcetyleneEnvironmental chemistrySoil waterNitrification[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil studyNitrogen cycle

description

Abstract Acetylene is currently used to distinguish between the relative contribution of nitrification and denitrification to soil emissions of the greenhouse gas, N 2 O. The basis of this method is that acetylene at low partial pressures inhibits nitrification without affecting N 2 O reduction. This paper reports experiments where low acetylene partial pressures were insufficient to totally inhibit nitrification in an hypercalcareous rendosol at water potentials higher than −3.5 MPa while they were always sufficient in a redoxic luvisol.

yearjournalcountryeditionlanguage
2000-10-01
https://hal.inrae.fr/hal-02687610