Larger image	Secretary of Agriculture Henry Wallace is instrumental in overseeing extensive land acquisition and construction at Beltsville. 46 major buildings and numerous greenhouses are constructed on 12,671 acres. Research projects at the Animal Disease Experiment Station in Bethesda, Entomology and Plant Quarantine Station in Takoma Park, and Arlington Farms Experiment Station in Arlington are moved to Beltsville.
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	Research projects at the Animal Disease Experiment Station in Bethesda, Entomology and Plant Quarantine Station in Takoma Park, and Arlington Farms Experiment Station in Arlington are moved to Beltsville.
Larger image	The Civilian Conservation Corps (CCC) constructs 21 buildings; 79 miles of roads, trails, and bridges; erects 242 miles of fences; lays 126 miles of water, sewage, and drainage pipes; landscapes 500 acres; and moves 78,000 trees and shrubs.
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	Many Government agencies begin as part of USDA and are located at Beltsville: Food and Drug Administration, Environmental Protection Agency, Biological Survey of the Department of the Interior, Forest Service, and Soil Conservation Service. In later years, the National Aeronautics and Space Administration, Office of Naval Research, Department of Commerce, University of Maryland, and Howard University had research projects on USDA land at Beltsville.
	National Bureau of Standards establishes in 1933 a radio station (WWV) in Building 452 to study radio wave transmissions.
Larger image	In 1935, the Bankhead and Jones Act is passed by Congress. This act results in a change in the research approach of USDA. Significant new funds are available to "conduct research into the laws and principles underlying basic problems in Agriculture in its broadest aspects." Because of this Act, many research projects at Beltsville change from a very applied to a more basic approach. These projects received about a 10% increase in funding.
Larger image            Larger image	Significant contributions to landscape and ornamental plant improvement are made. Releases from the 1930's onward include the first dwarf Easter lilies, the first summer blooming dahlias and chrysanthemums, cold-hardy crapemyrtles, as well as improved carnations, ornithogalums, amaryllis, viburnums, red maples, elms, magnolias, hollies, pyracanthas, and many other plants. Cultivar development continues today as consumer preferences change.
Larger image	After demonstrating the role of vitamin A in maintaining sight, researchers determine adults should consume a minimum of 5,000 to 6,000 International Units of vitamin A per day.
Larger image	In response to the need for a smaller, meatier turkey, scientists begin developing a new type of bird. By the late 1940's, the Beltsville small white turkey, which averaged 8-10 pounds with a high percentage of breast meat, begins showing up in stores. This turkey line is part of the pedigree of nearly every turkey sold in the U.S. today.
Larger image	Vitamin B12, is shown to be essential for egg production and the survival of newly-hatched chicks. This discovery alone increases the hatchability of eggs from 65% to the current 85%, providing an annual savings of 600 million eggs valued at $60 million.
	A vaccine is developed to prevent hog cholera, a disease that costs producers more than $100 million a year. By 1978, hog cholera is eradicated in the U.S.
Larger image	The first successful vaccine is produced to immunize cattle against brucellosis, a disease that can also infect humans.
	Phenothiazine, an effective and economical drug for removing many worm parasites from horses, swine, sheep, goats, and poultry, is discovered.