TABLE 1.
Characterization of the rock mineral fertilizer (Ag Blend Plus from Western Mineral Fertilizers Pty Ltd.) and chemical fertilizer (Gusto Gold from Summit Fertilizer Australia).
| Characteristics | Rock mineral fertilizer (Ag Blend Plus) | Chemical fertilizer (Gusto Gold) |
| N% | 7.5 | 10.2 |
| P% | 7.5 | 13.1 |
| K% | 4.5 | 12 |
| Ca% | 5 | 0 |
| S% | 8 | 7.2 |
| Mg% | 0.9 | 0 |
| Fe% | 2.6 | 0 |
| Si% | 6.7 | 0 |
| Mn, mg/kg | 4,000 | 0 |
| Zn, mg/kg | 430 | 1,300 |
| Cu, mg/kg | 430 | 900 |
| B, mg/kg | 17 | 0 |
| Ni, mg/kg | 30 | 0 |
| Mo, mg/kg | 1.5 | 0 |
| Bulk density, g/cm3 | 1.1 | 1.1 |
Data supplied by the manufacturers.