EU FERTILISING PRODUCT ● GRANULATED ● COMPLEX MACRONUTRIENT FERTILISER
PK (Ca, Mg, S) 12-25 (21-2-7)
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TECHNICAL SPECIFICATIONS arrow_forward
Granulation and bulk density
Prills
Fraction size 2.0 to 6.3 mm – 95%
Bulk density: 1.00 to 1.05 kg/dcm³
Properties
12% | total phosphorus pentoxide (P₂O₅) |
6,5% | phosphorus pentoxide (P₂O₅) soluble in formic acid |
25% | potassium oxide (K₂O) soluble in water |
21% | total calcium oxide (CaO) |
approx. 4% | calcium oxide (CaO) soluble in water |
2% | total magnesium oxide (MgO) |
7% | total sulphur trioxide (SO₃) |
6% | sulphur trioxide (SO₃) soluble in water |
Usage
The highest efficiency is achieved by applying the fertiliser before sowing and mixing it with the soil at a depth of 10–20 cm during pre-sowing tillage or pre-sowing ploughing.
On permanent grasslands, it is advisable to divide the dose into two parts and apply the first fertiliser dose in early spring and the second dose after harvesting the first cut or after the first grazing.
The fertiliser is also recommended for fertilisation in rotation in order to adjust the content of soil nutrients for the most demanding plants. Use the doses specified in fertiliser recommendations, taking into account the amount of available phosphorus and potassium in the soil.
Dosage [kg/ha]
FERTILIZED PLANTS | YIELD
t/ha |
CONTENT OF AVAILABLE PHOSPHORUS AND POTASSIUM IN THE SOIL | ||
low | medium | high | ||
winter cereals | 7,0 | 580 | 450 | 250 |
spring cereals | 6,0 | 550 | 420 | 200 |
rapeseed | 3,5 | 650 | 500 | 300 |
sugar beet (on manure) | 65,0 | 700* | 550 | 270 |
potatoes (on manure) | 35,0 | 560 | 420 | 230 |
legumes for grain | 3,5 | 500 | 350 | 230 |
hay-growing meadows | 6,0 | 650 | 450 | 300 |
legumes with grass – green fodder |
50,0 | 720 | 560 | 350 |
field grasses – green fodder |
45,0 | 720 | 560 | 350 |
corn for grain | 9,5 | 750 | 580 | 350 |
* risk of growing on low-fertility soils
Date of last update: 14 February 2024