HagenKB

Hagen For every pet, there is a Hagen brand.

Plant-Gro NPK Ingredients

Why does Plant~Gro NPK contain Nitrogen?

Why does Plant~Gro NPK contain Nitrogen?
Many have noticed numbers on the front panel of Plant Gro NPK (NPK) and Plant Gro Iron Enriched (i.e.) 0.6 - 0.3 - 2.4 and 0.15 - 0 - 0. These numbers are called fertilizer grade. Every fertilizer must state the fertilizer grade as this three number code.

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