Fertilizer: active ingredient to product

How much physical fertilizer to apply for a target N·P₂O₅·K₂O rate

Active ingredient rates, kg/ha

P₂O₅

K₂O

N — form

P₂O₅ — form

K₂O — form

Area, ha

Product needed

Ammonium nitrate (34.4% N)348,84 kg/ha

Single superphosphate (20% P₂O₅)300,00 kg/ha

Potassium chloride (60% K₂O)100,00 kg/ha

Total for 10 ha

7,49 т

Formula: product kg = a.i. rate ÷ a.i. content. MAP and UAN contain two nutrients — account for that when combining.

Active ingredient rates come from soil analysis and target yield — this tool only converts them to physical product.

About Fertilizer by Active Ingredient

Fertilizer by Active Ingredient — product rate per ha from crop N, P₂O₅, K₂O needs. Agro: Calculators for farmers and agronomists. Use our tools without registration or installing software. All calculations happen in your browser — your data is never sent to a server.