Fertiliser calculators

A useful collection of calculators to compare the return on investment and margin over fertiliser when using different fertilisers.

Wheat N Response S Barley N ResponseValue of Grass Nitrate vs Urea NS vs Straight N Compound vs Blend Tropicote Benefit

The value of grass

The value of grass as a livestock feed is often undervalued.  This calculator uses the costs of alternative standard bought-in feeds to calculate the value of the grass as a feed and also calculates the cost of nitrogen fertiliser to grow the grass as a proportion of the value of the grass.

Value of grass calculator

Please enter the required values

Grass Details

Fertiliser Details

Comparison Feeds



Value of grass per tonne
54 £/t
Value of grass per hectare
1359 £/ha
Amount of fertiliser applied
358 kg /ha
Fertiliser cost per ha
233 £/ha
Fertiliser cost as a percent of grass value
18 %

The calculations of grass value are based on the comparative costs of 'standard' feeds using 'book values' for dry matter, protein content and energy values, based on the AHDB Dairy 'relative feed values calculator'.

Check out the latest agronomy advice

These articles will help you get even better results from your fertilisers by keeping you up to date with the latest agronomy advice from the Yara agronomists. If you don't find the advice you are looking for try looking in our full advice archive.