AGRICOLA

Indexes over 900 sources. Database of records compiled by the National Agricultural Library of the U.S. Department of Agriculture (USDA). It covers every major agricultural subject, including plant and animal sciences, forestry, entomology, soil and water resources, agricultural economics, agricultural engineering, agricultural products, alternative farming practices, and food and nutrition. Auxiliary subjects that support NAL's Information Center activities, such as agricultural trade and marketing, rural information, and animal welfare, are also included. Production of the records in electronic form began in 1970, but the database covers materials dating from the 16th century to the present.