ALVA, Ashok
Title: Research Leader and locations Coordinator, Dr.
Address: USDA – Agricultural Research Service
Vegetable and Forage Crops Research Laboratory, Prosser, WA 99350
Tel: 509-786-9205
Email: Ashok.alva@ars.usda.gov
Education Background:
1983 Ph.D. Soil Fertility/Chemistry & Plant Nutrition, Pennsylvania State University
1975 M.Sc. Agric. Soil & Water Eng, Asian Inst. of Technology, Bangkok
1969 B. Sc. Agronomy, University of Agri. Sciences, Bangalore
Working Experiences:
1999 – present Research Leader and locations Coordinator, USDA-ARS-PWA,Vegetable and Forage crops Research, Prosser, WA
1989-1999 Assoc. Professor, University of Florida, Lake Alfred, FL
1987-1989 Postdoctoral Associate, University of Georgia, Athens and Tifton, GA
1985-1986 Research Fellow, University of New England, New South Wales, Australia
1984-1985 Research Fellow, University of Queensland, Queensland, Australia
1979-1983 Graduate Research Assistant, Pennsylvania State University, PA
1977-1979 Visiting Scientist, Danish International Development Agency, Copenhagen, Denmark
Research Interests:
• New biotechnologies to develop crop varieties with improved nutrition and phytonutrients
• Biofuel feedstocks production and crop management practices to enhance carbon sequestration in soils and mitigate trace gas emissions and climate change
• Cover crops to improve carbon sequestration and soil quality
• Reduced tillage for sustainable agriculture
• Estimation of nitrogen mineralization and availability from crop residues and soil organic nitrogen in potato-wheat-corn rotation system in irrigated intensive production system
• Developed environmentally friendly nutrient and irrigation best management practices for specialty crops 
• Sensor technologies for ART monitoring of soil water in soil profile
• Developed estimates of components of soil-water mass balance, crop evapotranspiration
• Developed estimates of nitrogen transformation coefficients and various components of nitrogen budget
• Developed quantitative methods for the diagnosis and correction of the nutritional status
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