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 GrasslandAmidas vs Blended Urea + SEngland & Wales Grassland P & K CalculatorNorthern Ireland Grassland P & K Calculator

England and Wales - Grassland P & K calculator

This calculator allows farmers in England and Wales to calculate their crop phosphate and potash requirement for silage and grazing using recommendations from RB209 (Table 3.3 & 3.4).

Crop requirements (units/acre)

Phosphate

Potash

Slurry contribution (units/acre)

Phosphate

Potash

Fertiliser Phosphate (P) & Potash (K) requirements (units/acre)

Phosphate

Potash

results empty

Please click calculate to generate results

Recommended Compound Fertilisers

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 SULPHUR CUT
22-4-14 + 7.5% SO3 - Compound fertiliser for arable and grass crops where sulphur is required.
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.
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 NK SULPHUR
22-0-14 + 7.5% SO3 - Compound fertiliser suitable for high phosphate, low potash soils deficient in sulphur.