--- title: Fertilizer emission calculator description: Estimate GHG emission reductions in barley, potato, and wheat cultivation with our fertilizer intervention calculator. Explore solutions like nitrogen stabilizers and controlled-release fertilizers. --- [![Proba. In your supply chain, we make the voluntary carbon market work for you.](https://proba.earth/hs-fs/hubfs/positive.png?width=185&height=53&name=positive.png "Proba. 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Search # Fertilizer emission quick scan Get a directional estimate of your fertilizer's climate impact in four quick steps, under a minute. Covering coffee, barley, potato, and wheat, it shows the GHG emission reductions from interventions like nitrification inhibitors, controlled-release fertilizers, and nitrogen rate optimization. This is a quick, self-service estimate, not a certified figure. If you need a number you can put in a Scope 3 report or CSRD disclosure, our team can quantify and verify it for your specific supply chain. This calculator is indicative only and does not represent a certified or auditable result. For that, talk to us... ## Find out where your Scope 3 impact really comes from. Fertilizer isn't a rounding error. Depending on the crop, it can account for a large share of your Scope 3 emissions, and the share differs by crop and region. Tell us the crops in your supply chain and we'll help you pinpoint where fertilizer reduction delivers the biggest impact, and how fast you could see it. ![Subheading (5)](https://proba.earth/hs-fs/hubfs/Subheading%20(5).png?width=317&name=Subheading%20(5).png "Subheading (5)") [Laan van Kronenburg 14, 1183 AS Amstelveen](https://maps.app.goo.gl/aKif8v1k5m9h2zA37)   Food companies are asking for certified Scope 3 reductions. It starts with fertilizer. 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