--- title: Proba NTree AI. Agentic emission accounting. description: Unlock precise emissions data for your specific fertilizer needs with Proba's NTree AI. Get tailored insights based on your unique farming situation and scientific research. --- [![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. In your supply chain, we make the voluntary carbon market work for you.")](https://proba.earth?hsLang=en) Search toggle - Use cases Use cases - [Quantify fertilizer emissions](https://proba.earth/quantify-fertilizer-emissions-proba) - [Certify reductions](https://proba.earth/certify-emission-reductions) - [Design projects](https://proba.earth/design-sustainability-projects) - [Connect to buyers](https://proba.earth/connect-to-buyers) - [Scope 3 progress](https://proba.earth/report-scope-3-progress) - [For food companies](https://proba.earth/for-food-companies) - [For commodity traders](https://proba.earth/commodity-trader) - [For agricultural co-ops](https://proba.earth/agri-cooperatives) - [For fertilizer producers](https://proba.earth/for-fertilizer-producers) - Products Products - [MRV Platform](https://proba.earth/mrv-platform) - [GHG Methodologies](https://proba.earth/methodologies) - [Inset Units](https://proba.earth/inset-units) - [Registry](https://proba.earth/registry) - [All Proba products](https://proba.earth/products) - Services Services - [Implementation services](https://proba.earth/implementation-services) - [Proba Projects](https://proba.earth/proba-projects) - [Proba Quick scan](https://proba.earth/fertilizer-emission-calculator) - Resources Resources - [Blog](https://proba.earth/probas-blog) - [Proba Standard](https://proba.earth/proba-standard) - [Public Consultation](https://proba.earth/public-consultation) - [Approved VVBs](https://proba.earth/approved-vvbs) - Company Company - [About us](https://proba.earth/about-proba) - [Contact us](https://proba.earth/contact) - [Governance](https://proba.earth/proba-governance) - [Privacy policy](https://proba.earth/proba-privacy-policy) [Follow us on Facebook](https://www.linkedin.com/company/proba-earth/) [![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. In your supply chain, we make the voluntary carbon market work for you.")](https://proba.earth?hsLang=en) - Use cases Use cases - [Quantify fertilizer emissions](https://proba.earth/quantify-fertilizer-emissions-proba) - [Certify reductions](https://proba.earth/certify-emission-reductions) - [Design projects](https://proba.earth/design-sustainability-projects) - [Connect to buyers](https://proba.earth/connect-to-buyers) - [Scope 3 progress](https://proba.earth/report-scope-3-progress) - [For food companies](https://proba.earth/for-food-companies) - [For commodity traders](https://proba.earth/commodity-trader) - [For agricultural co-ops](https://proba.earth/agri-cooperatives) - [For fertilizer producers](https://proba.earth/for-fertilizer-producers) - Products Products - [MRV Platform](https://proba.earth/mrv-platform) - [GHG Methodologies](https://proba.earth/methodologies) - [Inset Units](https://proba.earth/inset-units) - [Registry](https://proba.earth/registry) - [All Proba products](https://proba.earth/products) - Services Services - [Implementation services](https://proba.earth/implementation-services) - [Proba Projects](https://proba.earth/proba-projects) - [Proba Quick scan](https://proba.earth/fertilizer-emission-calculator) - Resources Resources - [Blog](https://proba.earth/probas-blog) - [Proba Standard](https://proba.earth/proba-standard) - [Public Consultation](https://proba.earth/public-consultation) - [Approved VVBs](https://proba.earth/approved-vvbs) - Company Company - [About us](https://proba.earth/about-proba) - [Contact us](https://proba.earth/contact) - [Governance](https://proba.earth/proba-governance) - [Privacy policy](https://proba.earth/proba-privacy-policy) Search toggle [![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. In your supply chain, we make the voluntary carbon market work for you.")](https://proba.earth?hsLang=en) - Use cases Use cases - [Quantify fertilizer emissions](https://proba.earth/quantify-fertilizer-emissions-proba) - [Certify reductions](https://proba.earth/certify-emission-reductions) - [Design projects](https://proba.earth/design-sustainability-projects) - [Connect to buyers](https://proba.earth/connect-to-buyers) - [Scope 3 progress](https://proba.earth/report-scope-3-progress) - [For food companies](https://proba.earth/for-food-companies) - [For commodity traders](https://proba.earth/commodity-trader) - [For agricultural co-ops](https://proba.earth/agri-cooperatives) - [For fertilizer producers](https://proba.earth/for-fertilizer-producers) - Products Products - [MRV Platform](https://proba.earth/mrv-platform) - [GHG Methodologies](https://proba.earth/methodologies) - [Inset Units](https://proba.earth/inset-units) - [Registry](https://proba.earth/registry) - [All Proba products](https://proba.earth/products) - Services Services - [Implementation services](https://proba.earth/implementation-services) - [Proba Projects](https://proba.earth/proba-projects) - [Proba Quick scan](https://proba.earth/fertilizer-emission-calculator) - Resources Resources - [Blog](https://proba.earth/probas-blog) - [Proba Standard](https://proba.earth/proba-standard) - [Public Consultation](https://proba.earth/public-consultation) - [Approved VVBs](https://proba.earth/approved-vvbs) - Company Company - [About us](https://proba.earth/about-proba) - [Contact us](https://proba.earth/contact) - [Governance](https://proba.earth/proba-governance) - [Privacy policy](https://proba.earth/proba-privacy-policy) [Follow us on Facebook](https://www.linkedin.com/company/proba-earth/) Search toggle What are you looking for? Search ### Proba NTree. Agentic emission accounting. # Fertilizer emissions, calculated for your supply chain ![EF Tree (4)](https://proba.earth/hubfs/EF%20Tree%20(4).png "EF Tree (4)") [Explore our methodologies](https://proba.earth/methodologies?hsLang=en) [Speak to someone today](https://proba.earth/contact?hsLang=en) Your Scope 3 report probably uses a generic number for the emissions related to fertilizer. Your supply chain is not generic. Describe your supply chain in plain words, and Proba NTree calculates the emissions of the fertilizer your growers use, based on what it is, where it was made and where it is applied, with the scientific source behind every number. [Request a walkthrough today!](https://proba.earth/contact?hsLang=en) ## How it works A fertilizer's emissions depend on what it is, how and where it was made, and the soil and climate it is used in. A generic number ignores all of that. NTree takes it into account and shows you exactly how. > 01 > > ### Your words Name the fertilizer, where the factory is and where the farms are. Ask the way you would ask a colleague. > 02 > > **The agent** The AI agent turns your question into the inputs the calculation needs, and asks a short follow-up when a detail is missing or would change the answer. > 03 > > **The Proba decision tree** The calculation happens here, not in the AI. The tree selects the one scientific method that fits your case, across four emission sources, using only published values. It can't make a number up. > 04 > > **Your number** Emissions for each source, ready for your report, with the study behind every part. The same question always gets the same answer, stamped with the tree version. ## **The AI asks. The tree calculates.** Proba's decision tree, built on Proba's methodology, matches your situation to exactly one method and calculates the result. The AI only handles the conversation, so no number ever comes from the AI. ### **What the agent does for you** - Compares scenarios. Ask what changes with another product, another origin or a lower nitrogen rate, and see each scenario side by side, source by source. - Explains its choices. Ask why a method applies to your case, and it shows the rule and the study behind it. - Works through your sourcing list. Give it all your scenarios at once and get the emissions for each. - Plugs into your own AI tools. Bring Proba NTree into the assistants your team already uses. ## Ask three experts. Get four answers. One reaches for a meta-analysis, one says IPCC will do, one found a new study last night. Proba's team settles those questions once. Which study applies to a Canadian field? What changes in the tropics? How should a fertilizer with an inhibitor be counted? Each answer is decided, written down and built into the tree. So whoever asks gets the same expert answer. ![Screenshot 2026-10-02 at 18.36.50](https://proba.earth/hubfs/Screenshot%202026-10-02%20at%2018.36.50.png "Screenshot 2026-10-02 at 18.36.50") ## Far more science than one example can show The example above draws on one tropical study. Behind NTree sits a growing library of peer-reviewed meta-analyses, each one pooling results from many field experiments around the world. Proba's team reviews them and builds the strongest into the methodology, so new evidence reaches your numbers without you having to read it. ![Screenshot 2026-10-06 at 14.51.09](https://proba.earth/hs-fs/hubfs/Screenshot%202026-10-06%20at%2014.51.09.png?width=2000&height=841&name=Screenshot%202026-10-06%20at%2014.51.09.png "Screenshot 2026-10-06 at 14.51.09") ## Want to see this in action? Request a demo! ![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. [Follow us on Facebook](mailto:hello@proba.earth) [Follow us on Facebook](https://www.linkedin.com/company/proba-earth/) Use cases [Quantify fertilizer emissions](https://proba.earth/quantify-fertilizer-emissions-proba?hsLang=en) [Certify reductions](https://proba.earth/certify-emission-reductions?hsLang=en) [Design projects](https://proba.earth/design-sustainability-projects?hsLang=en) [Connect to buyers](https://proba.earth/connect-to-buyers?hsLang=en) [Scope 3 progress](https://proba.earth/report-scope-3-progress?hsLang=en) [Food companies](https://proba.earth/for-food-companies?hsLang=en) [Commodity traders](https://proba.earth/agri-trader?hsLang=en) [Agricultural co-ops](https://proba.earth/agri-cooperatives?hsLang=en) [Fertilizer producers](https://proba.earth/for-fertilizer-producers?hsLang=en) Products [All Proba products](https://proba.earth/products?hsLang=en) [MRV Platform](https://proba.earth/mrv-platform?hsLang=en) [GHG Methodologies](https://proba.earth/methodologies?hsLang=en) [Inset units](https://proba.earth/inset-units?hsLang=en) [Registry](https://proba.earth/registry?hsLang=en) [Fertilizer calculator](https://proba.earth/fertilizer-emission-calculator?hsLang=en) Services [Implementation services](https://proba.earth/implementation-services?hsLang=en) [Quick scan](https://proba.earth/fertilizer-emission-calculator?hsLang=en) Resources [Blog](https://proba.earth/probas-blog?hsLang=en) [Document library](https://proba.earth/document-library?hsLang=en) [Public consultation](https://proba.earth/public-consultation?hsLang=en) [Approved VVBs](https://proba.earth/approved-vvbs?hsLang=en) Company [About us](https://proba.earth/about-proba?hsLang=en) [Contact us](https://proba.earth/contact?hsLang=en) [Governance](https://proba.earth/proba-governance?hsLang=en) [Privacy policy](https://proba.earth/proba-privacy-policy?hsLang=en)