EU FERTILISING PRODUCT ● GRANULATED ● COMPLEX MACRONUTRIENT FERTILISER
NPK (Ca, Mg, S) 3.5-7-25 (14-2-20)
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TECHNICAL SPECIFICATIONS arrow_forward
Granulation and bulk density
Prills
Fraction size 2.0 to 6.3 mm – 95%
Bulk density: 0.9 to 1.0 kg/dcm³
Properties
3,5% | total nitrogen (N) |
3,5% | ammoniacal nitrogen (N) |
7% | total phosphorus pentoxide (P₂O₅) |
4% | phosphorus pentoxide (P₂O₅) soluble in formic acid |
25% | potassium oxide (K₂O) soluble in water |
14% | total calcium oxide (CaO) |
approx.2% | calcium oxide (CaO) soluble in water |
2% | total magnesium oxide (MgO) |
20% | sulphur trioxide (SO₃) soluble in water |
Usage
The highest efficiency is achieved by applying the fertiliser in spring before potato sowing and mixing it with the soil to a depth of 10–20 cm during tillage. Use doses depending on the abundance of available potassium, expected yield and organic fertilisation used.
Dosage [kg/ha]
– yield 25 t/ha
ORGANIC FERTILIZATION | CONTENT OF AVAILABLE PHOSPHORUS AND POTASSIUM IN THE SOIL* | |||
low | medium | high | ||
with manure | 500 | 350 | 200 | |
without manure | 800 | 600 | 400 |
* If phosphorus and potassium levels in the soil allow its qualification to the same classes, the doses indicated above should be increased by 15-20%.
Date of last update: 14 February 2024