Parameterizing, measuring, and modeling water and contaminant transport dynamics in the vadose zone

Davie Kadyampakeni, Assistant Professor, Department of Soil, Water, and Ecosystem Services, UF

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ABSTRACT

Good water and nutrient management are key strategies for maintaining environmental quality in Florida where agriculture is done in predominantly sandy soils where excessive nutrient leaching are always a threat and judicious water management is critical. My program seeks to: 1) Develop and implement sustainable strategies that optimize water management and sustain quality; 2) Conduct research to improve water and nutrient use efficiency in crop production systems; 3) Develop local and regional water use models taking into consideration planting systems, crop water requirements, irrigation scenarios, and water use for cold protection; 4) Apply precision agricultural technologies for local and regional water management; and 5) Develop best management practices for water conservation and quality maintenance for surface and ground water sources. Current research targets optimizing nutrient and water application and delivery methods for achieving best management practices. Methods to achieve these goals include 1) conducting field experiments, 2) performing computer simulations for soil-water-plant processes, 3) delivering extension/outreach programs and 4) leveraging funding opportunities with UF collaborators and scientists from other institutions and universities.

BIO

Dr. Kadyampakeni is an Assistant Professor of Soil, Water and Ecosystem Sciences at the UF/IFAS Citrus REC with 30% extension and 70% research appointments affiliated with the UF Water Institute and the Global Food Systems Institute. His research interests focus on best nutrient and water management practices and water quality and crop/soil/water modeling in horticultural cropping systems. He has more than 10 years’ experience working on irrigation and nutrient management of citrus and vegetables at UF and the International Water Management Institute (IWMI), where he worked prior to rejoining UF. He has authored/co-edited 4 books and 7 book chapters. Dr. Kadyampakeni has published 64 articles in refereed journals and 100+ conference proceedings papers, technical reports, and extension bulletins. He is an active professional member of the Irrigation Association, American Society of Horticultural Science, Florida State Horticultural Society, Soil Science Society of America, Crop Science Society of America, and American Society of Agronomy. He is the past chair of the American Society of Agronomy (ASA) Sensor-based Water Management Community, The ‘W4128 Microirrigation: A Sustainable Technology for Crop Intensification and Improved Crop Productivity’ Multistate Project, and the American Society of Horticultural Science (ASHS) Citrus Working Group. Dr. Kadyampakeni is also the past Vice-Chair of the Agriculture Water Conservation and Quality Priority Working Group for the Water Initiative of UF/IFAS Extension roadmap. Davie is the current Presiding Leader of the ASA Crop Irrigation Strategies Community. Currently, he is supervising 3 postdoctoral associates and 1 biological scientist, advises/co-advises 5 PhD and 3 MS graduate students and 4 visiting scholars and serves on committees of 10 additional graduate students in Horticulture, Agronomy, and Soil, Water and Ecosystem Sciences.

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