
National Agriculture Library
The National Agricultural Library (NAL) is one of five national libraries of the United States. It houses one of the world's largest collections devoted to agriculture and its related sciences.
The main SEARCH tool provides access to more than 8 million records covering all aspects of agriculture and related disciplines.
You can choose where to SEARCH by selecting a scope from the dropdown in the search box:
- Everything to explore all content, including the Library's Catalog and Articles database (AGRICOLA), PubAg, the NAL Digital Collections (NALDC), and Special Collections materials.
- PubAg to limit your query to peer-reviewed journal article citations, including links to full-text manuscripts resulting from USDA-funded research.
- AGRICOLA to find items in the library's collection as well as article citations from selected journals. Click here to view a list of journals indexed in AGRICOLA.
National Agricultural Library Thesaurus Concept Space
NALT is a controlled vocabulary of terms related to agricultural, biological, physical and social sciences.
- "NALT Core", a trim NALT subscheme vocabulary, released in 2022 with 14,196 of the most frequently used agricultural concepts, including 4,396 agriculturally important organisms (taxa), and structural updates for a lean and efficient machine readable agricultural knowledge base, ideally suited for automation, machine learning, and other artificial intelligence applications for knowledge management in the machine age.
- "NALT Full", the original NALT including all NALT concepts in NALT Concept Space, transformed into a subscheme vocabulary within the NALT Concept Space framework. The inaugural NALT Full had all of NALT Core plus over 48,000 additional agricultural related organisms (taxa) and several thousand less frequently used concepts for a total of 77,093 concepts. NALT Full will continue to include all NALT concepts, for a more granular knowledge base.
Ag Data Commons
The Ag Data Commons is a research data catalog and repository for public access to data produced during research funded or co-funded by the United States Department of Agriculture. Through the Ag Data Commons, the National Agricultural Library makes USDA-funded research data systems and data products Findable, Accessible, Interoperable, and Reusable (FAIR).