Russell S. Yost

Biography

Ph.D., Soil Science, Statistics,& Plant Physiology, North Carolina State University, M.S., Soil Science, University of Nebraska; B.S., Kansas State University;

Research Interest

Understanding, predicting, and control of factors affecting soil-plant interactions with special reference to plant nutrition, environmental quality, and site-specific soil and crop management. Soils: Tropical soils, soils for remediation, soil phosphorus, soil acidity, studying the scaling up of soil processes from profile and field scales to landscapes. Landscape level experimentation, geospatial analysis, GIS, geostatistics Crops: Plant nutrition, legumes, agroforestry, green manures, VA mycorrhizae. Modeling as a way to understand and control crop growth, production, and impacts on the environment Water: Water and soil conservation technologies in West Africa, ACN - Ridge Tillage, scaling up field level water conservation technologies to watershed scales. Computer technology: Artificial intelligence, computer languages to capture and transfer human expertise, development of combined expert systems and simulation models, geostatistics, Geographical Information Systems: Development of geospatial analysis as an aid to traditional experimental statistical analysis. Participatory Development: Indigenous knowledge, participatory rapid rural appraisals, farmer empowerment through information science, Development of farmer-oriented information systems such as field-based soil series identification.