Top Substra is a partly coated fine-grained NPK fertilizer designed for subtrate mixtures. It combines an immediate with a long-term nutrient supply.
The nutrients are released in two steps:
1) Starter effect after application under moisture influence. As a result, the relatively high immediate demand is met.
2) In a second step, the coated granules release the nutrients via diffusion influenced by moisture and temperature.
Mixing into substrate is recommended directly before use (maximum storage time 10 days).
Benefits
Immediate and long-term effect combined
30 % of coated granules for a long-term feeding up to 3 months
Fine and homogenous granules for a good distribution in the subtrate mixtures
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