SUPERPHOSPHATE 18 GRANULATED
EU FERTILISING PRODUCT ● GRANULATED ● STRAIGHT SOLID INORGANIC MACRONUTRIENT FERTILISER
P (Ca, S) 18-(28-33)
- for pre-sowing use for all types of crops
- for all soils regardless of chemical composition
- contains highly soluble forms of phosphorus
- yield-forming effect thanks to the high sulphur content, activated throughout the plant vegetation period
500, BULK
Granulation and bulk density
Granules
Fraction size 2.0 to 5.6 mm – 90%
Bulk density: 1.0 to 1.1 kg/dcm³
Properties
| 18% | total phosphorus pentoxide (P₂O₅) |
| 12% | phosphorus pentoxide (P₂O₅) soluble in water |
| 16% | phosphorus pentoxide (P₂O₅) soluble in neutral solution of ammonium citrate |
| 28% | total calcium oxide (CaO) |
| approx.19% | calcium oxide (CaO) soluble in water |
| 33% | total sulphur trioxide (SO₃) |
| approx.23% | sulphur trioxide (SO₃) soluble in water |
Application
Granulated superphosphate is a typical pre-sowing fertiliser for all types of crops and all types of soil. It should be mixed with the soil to a depth of 10–20 cm. It can be spread before pre-sowing and winter ploughing. On grasslands, apply the fertiliser on the surface, without covering it with soil. Its nutrients will be gradually moved deeper by rainwater.
Dosage
| FERTILIZED PLANTS | YIELD t/ha | CONTENT OF AVAILABLE PHOSPHORUS IN THE SOIL | ||
| low | medium | high | ||
| winter cereals | 7,0 | 550 | 350 | 180 |
| spring cereals | 6,0 | 550 | 350 | 180 |
| rapeseed | 3,5 | 650 | 480 | 250 |
| corn for grain | 9,5 | 750 | 550 | 320 |
| sugar beet (on manure)* | 65,0 | 680 | 500 | 250 |
| potatoes (on manure) | 35,0 | 520 | 370 | 200 |
| legumes for seed | 3,5 | 420 | 280 | 150 |
| hay-growing meadows | 6,0 | 500 | 350 | 240 |
| corn for green fodder | 50,0 | 550 | 380 | 250 |
| legumes with grasses – green fodder | 50,0 | 550 | 420 | 250 |
| field grasses – green fodder | 45,0 | 550 | 420 | 250 |
* risk of growing on low-fertility soil
updateLast updated: 26 February 2024