Mitigation of Drought Stress for Quinoa ( Willd.) Varieties Using Woodchip Biochar-Amended Soil.

Drought stress deteriorates agro-ecosystems and poses a significant threat to crop productivity and food security. Soil amended with biochar has been suggested to mitigate water stress, but there is limited knowledge about how biochar affects the physiology and vegetative growth of quinoa plants under soil water deficits. We grew three quinoa ( Willd.