Nitrates Derogation / N Loading Calculator

Work out your farm's total nitrogen produced against your maximum permitted organic N, using DAFM category excretion rates. Follows the standard three-part structure: conditions, farmed area, then livestock on the farm.

1Conditions
2Farmed area

Answer the derogation question in Step 1 to see the area fields that apply to your farm.

3Nitrogen produced on the farm

Dairy

Roughly increasing milk-yield bands, lowest to highest — confirm the current published yield thresholds for each band with DAFM if you're unsure which applies to your herd.

Other bovine

Non-bovine grazing livestock

Non-grazing livestock

This touches Nitrates Regulations / scheme rules, which change. This is a planning aid, not a substitute for an official Nutrient Management Plan or DAFM confirmation — check current rules before acting on it. Reference data verified as of: 2026-07-29. Please verify current scheme rates before relying on this. .