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SO3 min. 44%
– sulfur plays a key role in nitrogen metabolism and the process of protein synthesis in plants, supporting their proper growth and development.
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CaO min. 30%
– nutritional calcium is an essential structural component of cell walls, improves soil structure, and helps neutralize its acidity.
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Moisture – below 3.0%
– low fertilizer moisture ensures high stability, prevents caking, and facilitates uniform spreading, which makes fertilization more effective.
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Fertilizer pH 7.5
– the proper pH of the fertilizer reduces soil acidification and improves nutrient availability, supporting correct plant development. The calcium content effectively neutralizes excess acidity, while sulfur helps maintain soil chemical balance. With regular use, SIARCOMPLEX contributes to improved soil health and helps limit pathogenic fungi.
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Granulation – 0–5 mm (including 0–2 mm above 80%)
– uniform granulation enables application with any type of spreader.
Benefits of Use
- a source of sulfur and calcium in easily absorbable forms
- improves nitrogen uptake and its effective utilization by plants
- increases the efficiency of nitrogen fertilizers
- enhances the absorption of nutrients from the soil
- significantly accelerates the start of plant vegetation, stimulating faster growth and development
- neutralizes the toxic effects of aluminum
- does not acidify the soil, unlike traditional sulfur fertilizers
- stabilizes the soil’s air and water conditions
- increases yields and improves the quality of agricultural produce (e.g., higher oil content in rapeseed, better carbohydrate quality in beets and potatoes)
Instructions for Use
FIELD CROPS:
- apply during traditional agrotechnical periods
- preferably on stubble in autumn or in spring before sowing/planting
- can also be applied as top-dressing for additional fertilization
ORCHARDS AND VEGETABLE CROPS:
- application dates should be set individually for specific crops
- pre-sowing, early spring, between rows, or autumn after harvest
GRASSLANDS:
- before sowing grasses, top-dressing in early spring or autumn
- can also be applied between harvests
- can be applied outside the growing season, even on frozen soil
Precautions
- When used as intended, the fertilizer poses no hazard.
- For prolonged contact, the use of eye and respiratory protection is recommended.
- In case of eye contact, rinse thoroughly with plenty of water.
- WARNING: DO NOT MIX WITH PHOSPHORUS FERTILIZERS.
Dosage
| Fertilized Crop | Fertilizer Dose (kg/ha) |
|---|---|
| Winter rapeseed | 450–500 |
| Spring rapeseed | 400–450 |
| Mustard | 400–450 |
| Maize | 300–400 |
| Sugar beet | 350–400 |
| Potato | 200–300 |
| Cereals | 200–225 |
| Fertilized Crop | Fertilizer Dose (kg/ha) |
|---|---|
| Legumes | 200–220 |
| White cabbage | 400–500 |
| Onion | 150–250 |
| Autumn garlic | 250–350 |
| Spring garlic | 200–300 |
| Apples, pears | 150–200 |







