📄️ Overview
This guide explains how the FDM Calculator determines the official Dutch legal usage norms (gebruiksnormen) for nitrogen and phosphate for the year 2025. These calculations are essential for ensuring your farm management plan complies with national environmental regulations.
📄️ Dierlijke Mest Gebruiksnorm
This document explains how the FDM Calculator determines the official Dutch legal usage norm (gebruiksnorm) for nitrogen from animal manure and how the applied animal manure counts towards this norm (the filling). It also covers the derogation regulations for 2025.
📄️ Fosfaatgebruiksnorm
This document provides a detailed explanation of the Dutch legal usage norm (gebruiksnorm) for phosphate in 2025. It covers how the norm is calculated and how the amount of applied phosphate counts towards this norm (opvulling), with a special focus on the regulations for organic-rich fertilizers as introduced in the 7th Action Programme Nitraatrichtlijn.
📄️ Stikstofgebruiksnorm
This document provides a detailed explanation of the Dutch legal usage norm (gebruiksnorm) for nitrogen in 2025. It covers how the norm is calculated, the rules for catch crops and winter crops, and how the applied nitrogen counts towards this norm (opvulling).