Rattan Lal is a professor of soil physics in the School of Environment and Natural Resources, and Director of the Carbon Management and Sequestration Center, FAES/OARDC at the Ohio State University.B.A. Stewart is Distinguished Professor of Soil Science at West Texas A & M University, in Canyon. He is also Director of the Dryland Agriculture Institute.

• Water and Agronomic Productivity. Water Resources and Agriculture. Irrigation and Soil Water Management. Agronomic Management of Soil and Crop. Policy and Economics. Tools of Watershed Management. Research and Development Priorities.

Rattan Lal is a professor of soil physics in the School of Environment and Natural Resources, and Director of the Carbon Management and Sequestration Center, FAES/OARDC at the Ohio State University.B.A. Stewart is Distinguished Professor of Soil Science at West Texas A & M University, in Canyon. He is also Director of the Dryland Agriculture Institute.

• Water and Agronomic Productivity. Water Resources and Agriculture. Irrigation and Soil Water Management. Agronomic Management of Soil and Crop. Policy and Economics. Tools of Watershed Management. Research and Development Priorities.

Rattan Lal is a professor of soil physics in the School of Environment and Natural Resources, and Director of the Carbon Management and Sequestration Center, FAES/OARDC at the Ohio State University.B.A. Stewart is Distinguished Professor of Soil Science at West Texas A & M University, in Canyon. He is also Director of the Dryland Agriculture Institute.

• Water and Agronomic Productivity. Water Resources and Agriculture. Irrigation and Soil Water Management. Agronomic Management of Soil and Crop. Policy and Economics. Tools of Watershed Management. Research and Development Priorities.