Produsele Sierrablen ofera o varietate de ingrasaminte granulate cu eliberare controlata. Aceste ingrasaminte sunt realizate cu ajutorul tehnologiei exclusive ICL de eliberare sub forma de granule peliculate standard.
Sierrablen 38-0-0 has enough controlled release Nitrogen to allow continuous growth for 4 – 5 months. It contains a controlled release NPK and a low amount of readily available Nitrogen. This Nitrogen is only release during proper growing conditions; helping to pre-stress condition the plant.