MAP FERTILISER
MAP (Mono-Ammonium Phosphate) is a major cropping fertilisers used in Australia as a source of phosphorus and nitrogen, MAP fertiliser and MAP blends are used extensively in cropping systems and for sowing pastures. The low level of nitrogen makes it useful as a ‘starter’ fertiliser and as there is no free ammonia, the risk of affecting germinating seeds is minimal.
GENERAL MAP SPECIFICATIONS – NH4H2PO4
| PRODUCT | N | P | K | S |
| %w/w | %w/w | %w/w | %w/w | |
| Granular MAP | 10.0 | 21.9 | 0.0 | 1.5 |
MAP and DAP are made by ammoniating phosphoric acid. The ratio of ammonia (NH3) to phosphoric acid (H3PO4) determines which product is produced. MAP fertiliser (NH3 +H3PO4 -> NH4H2PO4), or DAP fertiliser (2NH3 +H3PO4 -> (NH4)2HPO4 ).
DAP FERTILISER
DAP (Di-Ammonium Phosphate) is a major cropping fertilisers used in Australia as a source of both phosphorus and nitrogen. The high phosphorus content makes it a true high analysis fertiliser. DAP and DAP blends are used on a range of crops in broad-acre farming, cereals, sugar cane, sowing pastures, dairy pastures, fodder crops and also in horticultural crops; for example, vegetables and tree crops.
GENERAL DAP SPECIFICATIONS – (NH4)2HPO4
| PRODUCT | N | P | K | S |
| %w/w | %w/w | %w/w | %w/w | |
| Granular DAP | 18.0 | 20.0 | 0.0 | 1.6 |
DAP is a major cropping fertilisers used in Australia as a source of both phosphorus and nitrogen. The high phosphorus content makes it a true high analysis fertiliser. DAP and DAP blends are used on a range of crops in broad-acre farming, cereals, sugar cane, sowing pastures, dairy pastures, fodder crops and also in horticultural crops; for example, vegetables and tree crops.
