GHG emissions from urea (fertilizer)
I'm searching for data that quantifies what happens to the CO2 in urea, after it is applied as fertilizer. How much (and how fast) does it decompose to enter the atmosphere? Is any sequestered in the soil? Does any realistically get taken up by the plant it is fertilizing?
Any suggestions of a good dataset would be very welcome.
I'm an independent ammonia industry analyst. I track the new fertilizer plants being built and I'm very keen to see new, sustainable technologies replace the old fossil-fueled Haber Bosch process. The new projects that call themselves 'environmentally friendly' do so because they capture all the CO2 emissions at the plant, and use the CO2 to make urea. This strikes me as nonsense environmental accounting - the atmospheric emissions are still there, just outsourced to the farmer.
So - I'm looking for reliable data that I can use to demonstrate that urea production is not carbon sequestration.
With sincere thanks in advance,