A recent report has declared the carbon footprint for British produced Fibrophos PK Fertilisers are:
-0.49t (negative) *CO2e per tonne of fertiliser ex Thetford
-0.69t (negative) *CO2e per tonne of fertiliser ex Westfield
These figures, prepared by independent SLR Consulting Ltd over the 2022/23 period, demonstrate a positive carbon benefit (negative CO2) using comparisons with UK marginal electricity mix (natural gas turbine) and demonstrating the carbon benefit once spread to land as a fertiliser avoiding production of expensive and environmentally damaging inorganic fertilisers.
Figures are declared ex factory gate.
The energy produced from the combustion of predominantly poultry by-product biomass enters the national grid as 100% green electricity – displacing more damaging alternatives.
Alternative Claims:
One should be wary of figures quoted for alternative imported fertilisers. TSP for instance originates as rock blasted from the earth, ground to a powder to be acidulated with imported sulphuric acid only to be reconstituted to a granule and coated for easy spreading and storage. This is then transported to port to sea going diesel vessel before freight (eg from North Africa), discharge, handling, haulage and probable storage prior to potential further bag handling before figures are declared ex factory gate.
*Tonnes of Carbon Dioxide equivalent (tCO2e)