Commercial Bulk Fertilizer Blending Calculator
Calculate exact bulk raw fertilizer materials (Urea 46-0-0, DAP 18-46-0, Potash 0-0-60, AMS 21-0-0-24S) needed to fulfill soil test nutrient recommendations per acre and total field acreage.
Soil Test Nutrient Recommendations
lbs/ac
lbs/ac
lbs/ac
Field Size & Fertilizer Sources
acres
Quarter section = 160 acres.
DAP & MAP credit nitrogen automatically.
Total Bulk Material Required
42.4 TONS TOTAL
Total Application per Acre
530.1 lbs/ac
Custom N-P-K dry blend
Total Field Bulk Weight
42.4 Tons
~1.7 tender loads (25T)
Raw Material Formulation Breakdown
DAP (18-46-0)
Delivers 60 lbs Pâ‚‚Oâ‚… + 23.5 lbs N
130.4 lbs/ac
10.4 Tons
Urea (46-0-0)
Delivers remaining 126.5 lbs N
275.0 lbs/ac
22.0 Tons
Potash / Muriate (0-0-60)
Delivers 80 lbs Kâ‚‚O
133.3 lbs/ac
10.7 Tons
Agronomic Mass Balance Logic
University Extension
Multi-nutrient phosphate carriers (DAP 18-46-0 and MAP 11-52-0) contribute significant ammoniacal nitrogen. This calculator credits that nitrogen against the total crop nitrogen target before sizing the Urea (46-0-0) requirement, preventing over-application and saving input costs.