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

Compound vs Blend comparison

How much cheaper does a blended fertiliser need to be to achieve the same margin as a compound fertiliser?

Compound vs Blend calculator

To begin please enter the required values

Yara Compound Fertiliser

Nutrient content (%)

Blended Fertiliser

Nutrient content (%)

Crop Details

Typical yield losses from using a blend instead of a compound fertiliser


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

Compound Fertiliser

Amount of fertiliser applied
833 kg /ha
Amount of nitrogen applied
225 kg N /ha
Amount of phosphorus applied
42 kg P2O5 /ha
Amount of potassium applied
42 kg K2O /ha
Amount of sulphur applied
42 kg SO3 /ha
Cost of fertiliser applied
282 £ /ha
Expected crop yield
10 t/ha
Yield loss
0 t/ha
Actual crop yield
10 t/ha
Crop value
1650 £/ha
Margin over fertiliser ?
1368 £/ha

Best Option

Blended Fertiliser

Amount of fertiliser applied
900 kg /ha
Amount of nitrogen applied
225 kg N /ha
Amount of phosphorus applied
36 kg P2O5 /ha
Amount of potassium applied
36 kg K2O /ha
Amount of sulphur applied
45 kg SO3 /ha
Cost of fertiliser applied
270 £ /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
1617 £/ha
Margin over fertiliser ?
1347 £/ha
To achieve the same margin as the compound fertiliser the price of blended fertiliser would need to be
276 £/t

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
YaraMila ACTYVA S
16-15-15 + 6.5 SO3 - Granular fertiliser often used for grassland, winter cereals and oilseed rape to supply phosphate and potash together with nitrogen and sulphur.
YaraMila 52 S
YaraMila 52 S
20.6-8.2-11.6 +6.5%SO3 - Compound NPKS fertiliser containing Nitrogen, Phosphate, Potash and Sulphur suitable for all crops.
YaraMila EXTRAGRASS
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.

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.

Agronomy Advice - Do you really need straight nitrogen
Do you really need straight nitrogen
Before ordering your straight nitrogen it is worth considering how much you actually need as it may be you actually need NS or NPKS grades instead.
Agronomy Advice - Don't forget about sulphur
Don't forget about sulphur
Sulphur was often overlooked in the past but today it is recognised as an essential nutrient and considered just as important as nitrogen, so not to be forgotten.
Heavier fertiliser spreads further
Heavier fertiliser spreads further
Some fertilisers consistently spread further and more accurately than others. A heavier and larger fertiliser granule will spread further because the spreader can put more energy into it.
Increase grain protein with well timed nitrogen
Increase grain protein with well timed nitrogen
A well-timed application of nitrogen after the flag leaf final-dressing will increase the amount of nitrogen available to your crops during that crucial stage of protein development.
Foliar phosphate – energising cereal crops for spring growth
Foliar phosphate – energising cereal crops for spring growth
Many cereal crops struggle to get moving in early spring due to low phosphorus levels as a result of low phosphate availability. Giving these crops a quick 'energy boost' from foliar phosphate is the best way to get them started.
Agronomy Advice - Boron deficiencies in cereals shouldn’t be overlooked
Boron deficiencies in cereals shouldn’t be overlooked
Boron is generally an overlooked micronutrient and it is often wrongly assumed to be less important for cereals than for brassicas which have the highest boron requirement.
Nitrogen use efficiency - how do we improve it
Nitrogen use efficiency - how do we improve it
Nitrogen use efficiency helps to understand the relationships between the total nitrogen input compared to the nitrogen output. This allows improvements to be made resulting in better efficiency, profitability and sustainability.
Agronomy Advice - Is your potato quality being let down by a lack of calcium?
Is your potato quality being let down by a lack of calcium?
Calcium is a vital nutrient for potatoes and most aspects of tuber quality can be improved by having a sufficient supply of calcium during growth.
Understanding the economics of grass growth
Understanding the economics of grass growth
Against a climate of rising costs, livestock farmers have some tricky decisions to make. Nevertheless, replacing homegrown forage with purchased feed is still not justified, even at current fertiliser costs.
Looking for something else ? Check our full advice archive