Securing Maize Yields Against Drought and Phosphorus Stress with Humic Acid | Humicore
Drought is the single most destructive abiotic stress in global crop production, responsible for more yield loss annually than all other environmental constraints combined. For commercial cereal growers across the GCC — where average annual rainfall across Saudi Arabia, the UAE, Kuwait, and Oman ranges from 50 to 150 mm, and where summer temperatures routinely exceed 45°C — water stress is not a seasonal risk but a permanent production constraint. What makes drought particularly destructive in arid-region agriculture is a secondary effect that rarely receives sufficient agronomic attention: as soil moisture drops, phosphorus mobility collapses. Phosphorus reaches roots exclusively through diffusion