Students in the Schmahl Science Workshop and the Greene Scholars Program recently discussed their research projects with Deputy Under Secretary Ann Bartuska, pictured here (center) with Gloria Whitaker-Daniels (left), and Belinda Lowe-Schmahl (right)” (Photo Credit: Belinda Lowe-Schmahl)

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from the USDA’s rich science and research portfolio.

Developing a rapid, inexpensive biosensor to detect salmonella on vegetables; expanding understanding of the antimicrobial properties of nutmeg; finding a non-invasive method to test for glucose levels.  Read more »

On January 9, Agriculture Secretary Tom Vilsack put forth USDA’s “Blueprint for Stronger Service” which focuses on streamlining operations and cutting costs throughout the Department.

The “Blueprint for Stronger Service” calls for USDA to close 259 domestic offices, facilities and laboratories, as well as taking business-related actions such as consolidating cell phone plans across the Department, standardizing civil rights training and purchase of cybersecurity products, and centralizing activities related to civil rights, human resources, procurement and property management. Read more »

NASS, in partnership with Cornell’s Mann Library, has scanned and digitized thousands of pages of census reports, like this 1840 census publication, to make the historic Census of Agriculture reports available and searchable online for the first time.

Did you know that the number of farms in the United States peaked in 1935 at 6,812,350 operations when the average farm size was 154.8 acres? In comparison, the 2007 Census of Agriculture counted 2,204,792 farms with the average farm size of 418 acres. In celebration of 150 years of service to American agriculture, the USDA’s National Agricultural Statistics Service (NASS), in partnership with Cornell University’s Mann Library, are making these and many other historical facts available online at http://agcensus.mannlib.cornell.edu Read more »

Trevor Nichols (left), Chief Executive Officer, Centre for Agricultural Bioscience CABI-Plantwise and Dr. Catherine Woteki (right), Undersecretary, Research Education and Economics signed a Memorandum of Understanding to make the United States Department of Agriculture’s research and genetic information accessible to “plant doctors” working to prevent disease and pests in developing countries at the United States Department of Agriculture in Washington, D.C., on Tuesday, February 7, 2012.

As USDA celebrates 150 years of serving American agriculture and rural communities, it is important to remember the enormous contribution of the Cooperative Extension Service, a three-way partnership between USDA and our state and county partners that forms a nationwide network of expertise.  These experts work with Americans on issues that relate to a wide range of topics including: agriculture, natural resource management, nutrition, youth development, community empowerment, household and family budgeting, and disaster assistance, among others. Read more »

SASL team member graduate student Milutin Djurickovic samples greenhouse gases in the long-term Farming Systems Project. (Photo credit Michel Cavigelli)

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from USDA’s rich science and research portfolio.

Understanding the causes of greenhouse gas (GHG) emissions from agricultural landscapes is truly a multi-scale challenge, with GHG sources ranging from whole plant, to the microscopic microbe level.  For example, denitrification, the production of nitrous oxide, is the result of the action of just a few unique enzymes produced by a small number of bacteria and fungi in the soil.  These small players have huge importance because nitrous oxide is a greenhouse gas 300 times more powerful than carbon dioxide. Increases in nitrous oxide and other GHGs have been implicated in major global changes such as increased mean annual temperatures, resulting in melting glaciers, increasing floods, and more frequent heat waves. Read more »

The 2012 USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location.

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from the USDA’s rich science and research portfolio.

With spring not that far away, the garden catalogues are starting to fly through the mail, but the “must read” of the moment for America’s estimated 80 million gardeners is the new Plant Hardiness Zone Map rolled out by USDA last week at www.planthardiness.ars.usda.gov. Read more »