1. Drones in Agriculture Deon van der Merwe, David R. Burchfield, Trevor D. Witt, Kevin P. Price and Ajay Sharda 2. Biofertilizers in Agriculture: An Overview on Concepts, Strategies and Effects on Soil Microorganisms Mateusz Macik, Agata Gryta and Magdalena Frac 3. Advanced Analytics, Phenomics and Biotechnology Approaches to Enhance Genetic Gains in Plant Breeding Sangam L. Dwivedi, Irwin Goldman, Ceccarelli Salvatore and Rodomiro Ortiz 4. Review of Existing Knowledge on Subsurface Soil Compaction in South Africa M. C. Laker and G. P. Nortje 5. Understanding Intercropping to Improve Agriculture Resiliency and Environmental Sustainability Samantha Glaze-Corcoran, Masoud Hashemi, Amir Sadeghpour, Emad Jehanzad, Reza Keshavarz Afshar, Xiaobing Liu, and Stephen J Herbert 6. The Isotopes and Biomarker Approaches for Identifying Eroded Organic Matter Sources in Sediments: A Review Chun Liu, Zhongwu Li, Asmeret Asefaw Berhe and Bill X. Hu
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.