In agricultural contexts, a CDR intervention — like the application of a weathering mineral or biochar — could potentially change fertilizer use. Applied minerals may contain trace amounts of phosphorus and potassium, which could potentially reduce fertilizer requirements, and alkaline silicates could potentially improve plant nitrogen uptake. Applied biochar could shift nutrient retention or availability, dependent on its chemical and pyhsical properties. Due to the potentially difficult nature of the counterfactual scenarios involved, we recommend this component not be included in the accounting of net carbon removal.