There is no single "best" fertilizer globally, as agricultural productivity relies on matching the right nutrient formulation—typically nitrogen, phosphorus, and potassium—to specific soil deficiencies and crop types. However, urea is universally acknowledged as the most critical and widely utilized nitrogen fertilizer worldwide due to its high nutrient concentration and effectiveness in boosting staple food production. Specialty controlled-release fertilizers and balanced NPK complexes are also top-tier choices for modern precision agriculture.