/ sierra mixe corn Content for UC Davis en /food/news/can-we-grow-one-worlds-largest-food-crops-without-fertilizer Read how UC Davis researchers found a special kind of corn in Mexico that can absorb nitrogen from the air, reducing fertilizer use and improving crop yields. August 07, 2018 - 3:04pm Kelley Chu /food/news/can-we-grow-one-worlds-largest-food-crops-without-fertilizer