Lessons from low‐ and middle‐income countries to improve nutrient‐use efficiency under fertilizer scarcity

The limited accessibility, availability, and affordability of fertilizers constitutes a major constraint on crop productivity, alongside poor agronomic practices and weather-related environmental pressures. Maximizing nutrient use efficiency (NUE) through the adoption of appropriate agronomic practices and use of local phosphate rock can play a key role in preventing yield collapse. © 2026 Society of Chemical Industry.