Don’t reinvent the wheel! Do your homework first! Below are literature sources with keyword searching.
AGRICOLA - National Agricultural Library's Web Gateway
AGRICOLA is the bibliographical database indexed by the National Agricultural Library (NAL) in Beltsville, Maryland. A search on AGRICOLA can provide literature citations of USDA and land grant university research, Extension Service bulletins and fact sheets, experiment station bulletins, and USDA bulletins. It is a primary source for the literature of agriculture in the United States.
AGRIS is the bibliographical database indexed by the Food and Agriculture Organization (FAO). It has a special focus on international agriculture and farming systems for developing countries.
CRIS is the USDA database that provides documentation and reports of currently funded research on agricultural, food and nutrition, and forestry topics. CRIS contains over 30,000 descriptions of publicly supported research projects of the USDA research agencies, state agricultural experiment stations, and state land grant universities.
The Sustainable Agriculture Research and Education program is the USDA-funded initiative that sponsors competitive grants for sustainable agriculture research and education. The database can be searched by keyword, with results displaying project summaries and contact information to obtain further information.