U.S. flag

An official website of the United States government

FoodData Central

    Several USDA food composition databases, including the Food and Nutrient Database for Dietary Studies (FNDDS), Standard Reference (SR) Legacy, and the USDA Branded Food Products Database, have transitioned to FoodData Central, a new and harmonized USDA food and nutrient data system. FoodData Central will also include expanded nutrient content information never before available, as well as links to diverse data sources that offer related agricultural, food, health, dietary supplement, and other information.

    A Survey to Evaluate the Current Status of Land Grant University and State Department of Agriculture Soil Fertility Recommendations and Analytical Methods

      Results of a survey to collect contemporary information from our land-grant university colleagues working in soil fertility. The goals of the survey were to gain a better understanding of the current status of soil testing across the U.S. to inform future collaborative efforts among states and regions, and to identify where opportunities exist to harmonize recommendation guidelines. The objectives were to collect information about state soil test recommendations, fertilization philosophy, analytical methods, and the provenance of correlation and calibration data that support soil-test-based recommendations.

      Alfalfa Response to Potassium Rate and Timing of Application

        Alfalfa production is a key component of livestock production in Tennessee. Alfalfa has the ability to take up luxury amounts of potassium, which can lead to high plant tissue K concentrations and lower concentrations of other nutrients. The objectives of this research were to determine 1) whether Tennessee K recommendations for alfalfa were sufficient and accurate, and 2) if splitting K applications impacted alfalfa yield.

        Kellogg Biological Station (KBS) Long Term Ecological Research (LTER) Data Catalog

        NAL Geospatial Catalog
          The Kellogg Biological Station (KBS) Long Term Ecological Research (LTER) Data Catalog is a collection of data resources, including data sets, aerial photos, satellite imagery, GIS data, and national LTER network-wide data. You are welcome to examine and use the data as you wish for research and educational needs. However, data are copyrighted and use in a publication requires permission as detailed in KBS LTER's terms of use, which can be found at http://lter.kbs.msu.edu/data/terms-of-use/