1. The application potential of coal fly ash for selenium biofortification Honghua He, Jiayin Pang, Gao-Lin Wu and Hans Lambers 2. Crucifer-legume cover crop mixtures for biocontrol: Towards a new multi-service paradigm Antoine Couëdel, John Kirkegaard, Lionel Alletto and Éric Justes 3. Do we need specific breeding for legume-based mixtures? Paolo Annicchiarico, Rosemary P. Collins, Antonio M. De Ron, Cyril Firmat, Isabelle Litrico and Henrik Hauggaard-Nielsen 4. A practical guide to genetic gain Jessica E. Rutkoski 5. Optimized agronomic management as a double-win option for higher maize productivity and less global warming intensity: A case study of Northeastern China Zhenwei Song, Xiaomin Feng, Rattan Lal, Manman Fan, Jun Ren, Hua Qi, Chunrong Qian, Jinrui Guo, Hongguang Cai, Tiehua Cao, Yang Yu, Yubo Hao, Xiaomin Huang, Aixing Deng, Chengyan Zheng, Jun Zhang and Weijian Zhang 6. The evolution of lowland rice-based production systems in Asia: Historic trends, determinants of change, future perspective Mathias Becker and Carlos Angulo
DONALD L. SPARKS is the Unidel S. Hallock du Pont Chair and Francis Alison Professor at the University of Delaware. He is internationally recognized for his research in the areas of kinetics of biogeochemical processes and surface chemistry of natural materials. His research has focused on fate and transport of trace metals in soil and water, soil remediation, water quality, and carbon sequestration in soils. Dr. Sparks is the author of two previous editions of Environmental Soil Chemistry and more than 350 refereed papers and book chapters. He is fellow of five scientific societies, and he has been the recipient of major awards and lectureships including the Geochemistry Medal from the American Chemical Society, the Liebig Medal from the International Union of Soil Sciences, the Einstein Professorship from the Chinese Academy of Sciences and the Philippe Duchaufour Medal from the European Geosciences Union. Dr. Sparks served as president of the Soil Science Society of America and the International Union of Soil Sciences, has served on advisory committees for several national laboratories and national and international centers and institutes, and served as chair of the U.S. National Academy of Sciences (NAS) Committee for Soil Sciences and other NAS Committees.