SILVAMIX

SILVAMIX® is a line of special complete high-nutrient chloride-free fertilizers. Both manufactured forms - tablets and powder - are marked by a slow and pro-longed release of nutrients lasting for up to 18 months. SILVAMIX® is thus designated for fertilization and supplemental fertilization of a wide range of long-living cultures. In modern horticulture and forestry, slow-release tabletted fertilizers (SRFs) have proven superior to conventional fast-release fertilizers (FRFs).

The slow action of the SILVAMIX® fertilizers is due to their content of ureaform (urea-formaldehyde polycondensates) as the principal source of nitrogen. Ureaform chains of different lengths exhibit various water solubilities; at least 50 to 70 percent of total nitrogen is available in water-insoluble form, depending on the fertilizer composition. Unlike with the conventional FRFs, the use of SILVAMIX® prevents undesirably high concentrations of nitrogen in the soil at the beginning of fertilization. Consequently, the nitrogen leaching from the soil does not increase.

An important feature of SILVAMIX® is the content of sparingly soluble alkaline potassium-magnesium phosphate that guarantee a slow action of the other essential nutrients - phosphorus, potassium and magnesium - while having a positive effect on the pH of acidic soils.

The high nutrient content, the limited solubility and the absence of undesirable additives (e.g., chlorides) increase the number of possible applications of the SILVAMIX® fertilizers. Through all their qualities, they are environmentally friendly.