Northern Ireland - Grassland P & K calculator

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 Response Value of Grass Nitrate vs Urea NS vs Straight N Compound vs Blend Tropicote Benefit Compound v Blend Grassland Amidas vs Blended Urea + S England & Wales Grassland P & K Calculator Northern Ireland Grassland P & K Calculator

Northern Ireland - Grassland P & K calculator

This calculator allows farmers in Northern Ireland to calculate their crop phosphate and potash requirement for silage and grazing using phosphate recommendations from the Nutrients Action Programme (NAP) and potash recommendations from RB209 (Table 3.3 & 3.4)

Grass Crop

Soil Phosphate index

Soil Potash index

Cattle slurry application rate ('000 gallons/acre)

Recommended Compound Fertilisers

YaraMila SULPHUR CUT

22-4-14 + 7.5% SO3 - Compound fertiliser for arable and grass crops where sulphur is required.