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Advisor(s)
Abstract(s)
Objectives: Cattle-slurry management became a priority in many livestock farms and slurry treatment is used
to increase the fertilizer value of slurry and/or minimize its environmental impact. Indeed, significant
emissions of ammonia (NH3) and greenhouse gases (GHG) as nitrous oxide (N2O), carbon
dioxide (CO2) and methane (CH4) can occur during and after slurry application to soil. Application
of acidified slurry or liquid fraction (LF) obtained by solid-liquid separation are two alternatives to
raw slurry application that have proven to be efficient to minimize ammonia emissions. However,
few is known about its effect on GHG emissions.
The aim of the present work was to assess the efficiency of cattle slurry treatment by acidification
and/or solid liquid separation to mitigate ammonia (NH3) and greenhouse gases (GHG) emissions
following surface application to a sandy loam soil.
Description
Keywords
cattle-slurry treatment gaseous emissions
Citation
Fangueiro, D., Pereira, J., Bichana, A., Surgy, S., Cabral, F., Coutinho, J., 2015. Impact of cattle slurry treatment by separation and acidification on gaseous emissions after soil application. 16th International Conference Rural-Urban Symbiosis, RAMIRAN, Hamburg, Germany, 8th - 10th September 2015.