Fertiliser calculators

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

Nitrate vs Urea NS vs Straight N Compound vs Blend CN vs CAN Wheat N Response Value of GrassUrea Blended Fertiliser

Use our calculator below to see why it pays to buy a Yara NPK fertiliser! 

How much cheaper does a blended NPK fertiliser need to be to achieve the same margin as a quality Yara CCF NPK fertiliser on grass?

For this comparison, you will need to know if the NPK blend contains CAN or Urea, as this influences the typical yield loss from a blended fertiliser

To begin please enter the required values

Yara CCF Fertiliser 

Nutrient content (%)

Blended Fertiliser

Nutrient content (%)

Crop Details

If the NPK blend includes Urea then use 5% as the typical yield loss. If the NPK blend includes CAN then use 2% as the typical yield loss


Recent development work carried out by Yara investigated the segregation of nutrients that occurs as the hopper discharges during application. It was found that using inferior quality blended fertiliser led to yield reductions of up to 5% due to poor distribution of nutrients. Read more

Your results

 

Best Option

CCF NPK Fertiliser

Amount of fertiliser applied

833 kg /ha

Amount of nitrogen applied

225 kg N /ha

Amount of phosphorus applied

8 kg P /ha

Amount of potassium applied

16 kg K /ha

Amount of sulphur applied

9 kg S /ha

Cost of fertiliser applied

287 € /ha

Expected crop yield

10 t/ha

Yield loss

0 t/ha

Actual crop yield

10 t/ha

Crop value

2450 €/ha

Margin over fertiliser ?

2163 €/ha

Best Option

NPK Blended Fertiliser

Amount of fertiliser applied

900 kg /ha

Amount of nitrogen applied

225 kg N /ha

Amount of phosphorus applied

16 kg P /ha

Amount of potassium applied

16 kg K /ha

Amount of sulphur applied

0 kg S /ha

Cost of fertiliser applied

300 € /ha

Expected crop yield

10 t/ha

Yield loss due to blend

0.2 t/ha

Actual crop yield

9.8 t/ha

Crop value

2328 €/ha

Margin over fertiliser ?

2028 €/ha

To achieve the same margin as the compound fertiliser the price of blended fertiliser would need to be

411 €/t
results empty

Please enter the required values

Recommended compound fertilisers

The following YaraMila compound NPKS fertilisers are recommended for all crops and contain nitrogen, phosphate, potassium and sulphur in appropriate ratios.

YaraMila ACTYVA S
16-6.6-12.4 + 2.6% S - Granular fertiliser often used for grasland, winter cereals and oilseed rape to supply phosphate and potash together with nitrogen and sulphur.
YaraMila EXTRAGRASS
27-2.2-4.2 + 2.4% S - Compound granular NPKS fertiliser ideally suited to little and often application for Spring/Summer application to grassland for index maintenance and high recovery growth rates.
YaraMila SUPER BOOSTER
25-2.2-4.2 + 2%S + Na and Se - Compound prilled NPKS fertiliser with sodium selenate for use on grassland to supplement selenium levels.

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.
Yara Agronomist and a Farmer in a potato field
Improve Potato Quality with Calcium
Did you know that up to 50% of wheat leaf samples show a deficiency in zinc, magnesium, copper and manganese?
Two cows in a farm field
Grassland Grazing Tips for May to June
We’re heading into a busy period for grassland farmers and as ever, the weather can change everything in a heartbeat. Here are a few things to focus on throughout the rest of May and heading into June.
Farmer in a field
Stimulating Growth by Enhancing Nature
Yara’s expertise isn’t solely focussed on NPKS fertiliser development, over the years Yara have worked hard to reduce our impact on the environment as well as developing more sustainable products.
Three people walking through a Scottish farm
Walk your Fields
Throughout April and into May we’ll be focusing on optimising grass growth to meet the demands of our grazing cows so that we can maximise grazed grass in the diet.
Wheat Field
Help Late-Drilled Wheat Crops Catch Up
Did you know that up to 50% of wheat leaf samples show a deficiency in zinc,magnesium, copper and manganese?
Carrots in a field
Maximising your vegetable crops’ potential with foliar nutrition
With the amount of rainfall we've had, a lot of the nutrients in the soil will potentially have leached away.
Looking for something else ? Check our full advice archive