Efficacy of dunite to reduce greenhouse gas emissions from soil when co-applied with urea

<p dir="ltr">The reduction of greenhouse gas (GHG) emissions such as carbon dioxide (CO₂) and nitrous oxide (N₂O) from fertiliser application to soils is key to achieve global mitigation targets under the Paris Agreement. Mitigating GHG emissions also has financial benefits for farmers and the fertiliser industry. Enhanced rock weathering (ERW) is a natural process that can result in atmospheric carbon removal thus has the potential to be harnessed as a tool to reduce GHG losses from fertiliser applied to soil. This report contains the findings of a laboratory study where dunite, a rock already sold as a fertiliser, and capable of ERW, is applied together with urea, to evaluate its ability to reduce urea derived GHG emissions from soil over a 42-day period.</p><p dir="ltr">Report number: RE450/2025/032</p>