EU FERTILISING PRODUCT ● GRANULATED ● STRAIGHT SOLID INORGANIC MACRONUTRIENT FERTILISER
P (Ca, S) 18-(28-33)
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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 |
Usage
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 [kg/ha]
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
Date of last update: 26 February 2024