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United States Department of Agriculture

United States Department of Agriculture is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand United States Department of Agriculture rather than just read about it. In short: The United States Department of Agriculture (USDA) is an executive department of the United States federal government that aims to meet the needs of commercial farming and livestock food production, promotes agricultural trade and production, works to assure food safety, protects natural resources, fosters rural communities and works to end hunger in the United States and internationally. It is headed by the secreta…

United States Department of Agriculture — main illustration
United States Department of Agriculture — illustration

Key takeaways

  • United States Department of Agriculture belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect United States Department of Agriculture to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of United States Department of Agriculture from memory before moving on to harder problems.

Reference excerpt

The United States Department of Agriculture (USDA) is an executive department of the United States federal government that aims to meet the needs of commercial farming and livestock food production, promotes agricultural trade and production, works to assure food safety, protects natural resources, fosters rural communities and works to end hunger in the United States and internationally. It is headed by the secretary of agriculture, who reports directly to the president of the United States and is a member of the president's Cabinet. The current secretary is Brooke Rollins, who has served since February 13, 2025.

Approximately 71% of the USDA's $213 billion budget goes towards nutrition assistance programs administered by the Food and Nutrition Service (FNS). The largest component of the FNS budget is the Supplemental Nutrition Assistance Program (formerly known as the 'Food Stamp' program), which is the cornerstone of USDA's nutrition assistance. The United States Forest Service is the largest agency within the department, which administers national forests and national grasslands that together comprise about 25% of federal lands.

Overview The USDA is divided into eight distinct mission areas, each of which have at least one agency dedicated to the theme of the mission area: Farm Production and Conservation (FPAC)

FPAC Business Center Farm Service Agency (FSA) Natural Resources Conservation Service (NRCS) Risk Management Agency (RMA) Food, Nutrition, and Consumer Services (FNCS)

Food and Nutrition Service (FNS) Food Safety (FS)

Food Safety and Inspection Service (FSIS) Marketing and Regulatory Programs (MRP)

Agricultural Marketing Service (AMS) Animal and Plant Health Inspection Service (APHIS) Natural Resources and the Environment (NRE)

Forest Service (FS) Research, Education, and Economics (REE)

Agricultural Research Service (ARS) Economic Research Service (ERS) National Agricultural Statistics Service (NASS) National Institute of Food and Agriculture (NIFA) Office of the Chief Scientist Rural Development (RD)

Rural Business-Cooperative Service (RBS) Rural Housing Service (RHS) Rural Utilities Service (RUS) Trade and Foreign Agriculture Affairs (TFAA)

Foreign Agricultural Service (FAS) U.S. Codex Office

Many of the programs concerned with the distribution of food and nutrition to people of the United States and providing nourishment as well as nutrition education to those in need are run by the Food and Nutrition Service. Activities in this program include the Supplemental Nutrition Assistance Program, which provides healthy food to over 40 million low-income and homeless people each month. USDA is a member of the United States Interagency Council on Homelessness, where it is committed to working with other agencies to ensure these mainstream benefits have been accessed by those experiencing homelessness. The USDA also is concerned with assisting farmers and food producers with the sale of crops and food on both the domestic and world markets. It plays a role in overseas aid programs by providing surplus foods to developing countries. This aid can go through USAID, foreign governments, international bodies such as World Food Programme, or approved nonprofits. The Agricultural Act of 1949, section 416 (b) and Agricultural Trade Development and Assistance Act of 1954, also known as Food for Peace, provides the legal basis of such actions. The USDA is a partner of the World Cocoa Foundation.

History

The standard history is Gladys L. Baker, ed., Century of Service: The first 100 years of the United States Department of Agriculture (U.S. Department of Agriculture, 1963).

Origins in the Patent Office Early in its history, the American economy was largely agrarian. Officials in the federal government had long sought new and improved varieties of seeds, plants and animals for import into the United States. In 1829, by request of James Smithson out of a desire to further promulgate and diffuse scientific knowledge amongst the American people, the Smithsonian Institution was established, though it did not incorporate agriculture. In 1837, Henry Leavitt Ellsworth became Commissioner of Patents in the Department of State. He began collecting and distributing new varieties of seeds and plants through members of the Congress and local agricultural societies. In 1839, Congress established the Agricultural Division within the Patent Office and allotted $1,000 for "the collection of agricultural statistics and other agricultural purposes." Ellsworth's interest in aiding agriculture was evident in his annual reports that called for a public depository to preserve and distribute the various new seeds and plants, a clerk to collect agricultural statistics, the preparation of statewide reports about crops in different regions, and the application of chemistry to agriculture. Ellsworth was called the "Father of the Department of Agriculture". In 1849, the Patent Office was transferred to the newly created Department of the Interior. In the ensuing years, agitation for a separate bureau within the department or a separate department devoted to agriculture kept recurring.

Formation

… excerpt ends here. Continue reading the full article.

Illustrations

United States Department of Agriculture illustration
United States Department of Agriculture illustration
United States Department of Agriculture illustration
United States Department of Agriculture: Jamie L. Whitten Building, the headquarters of the U.S. Department of Agriculture
Jamie L. Whitten Building, the headquarters of the U.S. Department of Agriculture
United States Department of Agriculture: Harvey Washington Wiley, Chief Chemist of the Department of Agriculture's Division of Chemistry (third from the right) with his staff in 1883
Harvey Washington Wiley, Chief Chemist of the Department of Agriculture's Division of Chemistry (third from the right) with his staff in 1883

Worked examples

Example 1 — a first encounter with United States Department of Agriculture

Start with the simplest possible case. Write down what United States Department of Agriculture claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to United States Department of Agriculture before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about United States Department of Agriculture ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of United States Department of Agriculture

In research
United States Department of Agriculture appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses United States Department of Agriculture in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
United States Department of Agriculture is common in secondary-school and first-year university syllabi. It links to neighbouring topics Agricultural organizations based in the United States, American organizations established in 1862, Government agencies established in 1862, so understanding it makes those chapters shorter.
In everyday life
Look for United States Department of Agriculture outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study United States Department of Agriculture in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what United States Department of Agriculture means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain United States Department of Agriculture out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is United States Department of Agriculture in simple terms?

The United States Department of Agriculture (USDA) is an executive department of the United States federal government that aims to meet the needs of commercial farming and livestock food production, promotes agricultural trade and production, works to assure food safety, protects natural resources…

Why does United States Department of Agriculture matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study United States Department of Agriculture?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on United States Department of Agriculture.

Tags

  • Agricultural organizations based in the United States
  • American organizations established in 1862
  • Government agencies established in 1862
  • Ministries of agriculture
  • United States Department of Agriculture
  • United States federal executive departments

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