NPK 12-3-3 is a fertilizer with a 12% nitrogen (N), 3% phosphorus (P), and 3% potassium (K) content, often found in an organic granular form that also includes beneficial ingredients like humic acid, amino acids, and seaweed extract. This type of fertilizer is designed to provide balanced nutrients for healthy root growth, improve soil structure, and boost overall crop yield and quality. Environmentally friendly, many versions are organic and sustainable.