FERTILISER DENSITY AND SIZING
Pacific Fertiliser manufactures and imports fertilisers, from various suppliers. Typical density and sizing data for the more commonly used products are shown in the following table. The fertiliser product bulk densities can vary between manufacturers/suppliers and over time, and consequently may differ from the table.
Before spreading it is best to check the product/blend bulk density with a measuring scoop/scale to calibrate your spreader.
Granular Urea – 0.7-0.8 t/m3 and roughly 92% 2-4mm
Granular SOA – 0.95-1.15 t/m3 and roughly 70% 2-4mm
DAP – 0.9-1.1 t/m3 and roughly 94% 2-4mm
MAP – 0.9-1.1t/m3 and roughly 94% 2-4mm
SSP – 1.1-1.3t/m3 and roughly 70% 2-4mm, 30% 4-6mm
TSPS – 1.0-1.2t/m3 and roughly 2-6mm
MOP – 1.0-1.12t/m3 and roughly 90% 2-4mm
SOP – 1.2-1.4t/m3 and roughly 90% 2-4mm
The general angle of repose for granular fertiliser storage in bunkers is generally between 29-36 degrees. The angle can vary with fertiliser type, granular size and fertiliser quality.
Note: When spreading it always best to check the product bulk density by dividing the first load weight via the area covered (GPS) with that 1st load, to calculate the actual kg/ha in the field.
