Linking Land Quality, Agricultural Productivity, and Food Security—This report finds that land degradation does not threaten productivity growth or food security at the global level, but does pose problems where soils are fragile, property rights are insecure, and farmers have limited access to information and markets.

Crop Genetic Resources: An Economic Appraisal—Half the yield gains in major cereal crops since the 1930s are attributed to genetic improvements, but without continued improvement using diverse germplasm from both wild and modified sources, yields might eventually grow more slowly or even decline.

• Economic Returns to Public Agricultural Research
• Productivity Growth in U.S. Agriculture
• Knowledge Resources and Productivity: AREI, 2006 Edition
• Program of Research on the Economics of Invasive Species Management: Fiscal 2003-2005 Activities
• Wheat Backgrounder

• Agricultural Productivity in the United States