Nutrient consumption of field crops.

Solitons, diffraction of wave packets, fingering phenomena.

Environmental and natural resource economics, land-use modeling, water and waste management, political economics.

Using systems biology to study ecology and evolution of microbes.

Biology, ecology and control of soil-borne plant pathogens, Soil solarization.

Ecology of Mediterranean and semiarid plant communities, grazing effects, biodiversity and ecosystem functioning, plant-environment interactions, climate change, physiology and ecology of seed germination.

The economics of family farms; Public policy in agriculture, labor markets, education and aging. Structural changes in the farm sector; Farmers' time allocation, exit and retirement decisions; Intergenerational transfers and farm succession.