Zimbabwean national Dr. Pauline Nhamo Chivenge was one of the first students to be awarded a Borlaug LEAP fellowship in Winter 2006. She was enrolled in the PhD program at University of California, Davis in the Department of Plant Sciences. Dr. Chivenge was researching the combination of organic and mineral nutrient resource results in improved synchrony and carbon sequestration by affecting carbon and nitrogen stabilization through aggregate formation, followed by carbon and nitrogen release during aggregate breakdown. The objectives of her research were to determine 1) how organic resource (OR) plus mineral resource combinations alter aggregate turnover and mineralization-immobilization patterns of nitrogen; 2) the influence of the quality of the OR on these processes; and 3) the role of soil texture, mineralogy and climate on these processes.
Dr. Johan Six, a professor at the University of California, Davis, and Dr. Bernard Vanlauwe at the International Center for Tropical Agriculture (CIAT) mentored Dr. Chivenge. During her fellowship she conducted her fieldwork in Kenya under the supervision of her CIAT mentor.