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 BenefitCompound v Blend Grassland

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

Results

 

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 %
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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'.

Recommended fertilisers

The following grassland fertilisers are recommended

YaraBela NUTRI BOOSTER
25% N + 5% SO3, Na and Se - Unique compound fertiliser for use on grass based on nitrate nitrogen and sulphur coupled with selenium.
YaraMila STOCK BOOSTER S
25-5-5 +5% SO3 + Na and Se - A compound prilled NPKS fertiliser containing selenate for use on grassland to supplement selenium levels.
YaraBela AXAN
27% N + 9% SO3 - Granular uniform compound nitrate based nitrogen and sulphur fertiliser for use on all crops.
YaraMila EXTRAGRASS
27-5-5 + 6% SO3 - Compound granular fertiliser with sulphur with the ideal ratio for grazed or mown swards to get the grass off to a good start early in the season.
YaraMila NK SULPHUR
22-0-14 + 7.5% SO3 - Compound fertiliser suitable for high phosphate, low potash soils deficient in sulphur.

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.

Spreader on a field
Fertiliser quality - don't settle for less
Soil fertility is certainly top of both farmers and policy makers minds currently, with a broad consensus that it plays a key role in the continued economic and environmental sustainability of farms.
Cows in a field
Keeping clover in fine fettle
White clover is being increasingly used on intensively grazed farms where the benefits can be substantial, lowering both the cost of growing grass and the carbon emissions intensity of milk produced. Managing nutrient and fertiliser inputs is a key component in establishing and maintaining clover in these swards successfully.
Canola Fields
Sulphur: Best Practice
It is widely accepted that UK soils are deficient in sulphur so supplementation via organic manures or mineral fertilisers is essential. What I think is less understood is that not all sulphur-containing fertilisers are the same.
Looking for something else ? Check our full advice archive