50 Fun Facts About Agriculture

Humans gathered grain for ages before farming it. Roughly when did they start planting?

Grain gathering goes back at least 105,000 years. Sheep, goats, pigs and cattle were domesticated around 10,000 years ago.

Plants were independently brought into cultivation in at least how many regions of the world?

Farming created the food surpluses that let people live in cities. In the 20th century, large-scale monoculture came to dominate output.

Small farms of one hectare or less produce roughly what share of the world's food?

Five of every six farms are under 2 hectares, yet farms over 50 hectares, just 1 percent of the total, hold over 70 percent of farmland.

About what share of the world's food is lost before it even reaches the retail level?

Global production runs to roughly 11 billion tonnes of food, 32 million tonnes of natural fibres and 4 billion cubic metres of wood.

The shift from hunting and gathering to farming and settlement is known as what?

It is also called the First Agricultural Revolution and began in the Holocene about 11,700 years ago, after the last Ice Age.

Which Middle Eastern region is believed to be where settled farming first emerged?

Sumer in Mesopotamia flourished there. Irrigation, writing, the wheel and glass all emerged first in the region.

Which archaeologist popularised the term for that Middle Eastern region in 1914 and 1916?

Historian Thomas Scheffler notes he was following a Western trend of overwriting classical geography with large abstract spaces.

Irrigation from the 6th millennium BCE has been found in Khuzistan, in which modern country?

By 2000 about 2.79 million square kilometres of farmland had irrigation infrastructure, with roughly 68 percent of it in Asia.

Andean farmers have used terraces called andenes for a thousand years to grow which crops?

The Wari culture developed terraced farming before 1000 AD, and the Inca later added canals, aqueducts and puquios to water dry land.

Asian rice was first domesticated about 9,000 years ago along which river?

Rice is the staple food of more than half the world's population. The key domestication marker is a gene for grains that do not shatter.

Which two countries produced a combined 52% of the world's rice in 2023?

World output was 800 million tonnes, placing rice third among crops. Around 90 percent is grown in Asia.

Maize is the domesticated form of which wild grasses?

In 2004 John Doebley pinned the closest wild relative to the Balsas River valley in the southwestern highlands of its homeland.

Barbara McClintock used maize to prove which theory, winning a 1983 Nobel Prize?

Her transposon work earned the Nobel Prize in Physiology or Medicine. Maize is diploid with 20 chromosomes.

Wheat covers more land than any other food crop. What was world production in 2024?

That made it the second most-produced cereal after maize. World trade in wheat exceeds that of all other crops combined.

Which three countries together provided 42% of the world's wheat in 2024?

Hunter-gatherers in West Asia harvested wild wheat as early as 21,000 BC, long before it was domesticated.

What is the world's largest crop by production quantity?

It totalled 1.9 billion tonnes in 2020, with Brazil growing about 40 percent. Sugarcane supplies 79 percent of the world's sugar.

Who first brought the world's largest crop to the Caribbean, on his second voyage?

Sugar later formed one side of the colonial triangle trade with European goods and enslaved Africans.

The potato was first domesticated 7,000 to 10,000 years ago around which body of water?

Wild species range from the southern United States to Chile, but the cultivated potato has a single origin in southern Peru and Bolivia.

Which country led world potato production in 2024 with 24% of the total?

India was the major secondary producer. Centuries of selective breeding have produced more than 5,000 potato varieties.

Brazil and the United States together grew what share of the world's soybeans in 2020?

Andrew McClung showed in the 1950s that Brazil's Cerrado could grow soybeans with soil amendments, opening a huge new region.

Botanically, a banana is which kind of fruit?

The plant is a giant herb, not a tree. Bananas are exported in larger volume and value than any other fruit.

Which fungal blight threatens the Cavendish bananas that dominate the global market?

It is caused by a Fusarium fungus, and black sigatoka adds to the pressure. The Cavendish replaced the earlier Gros Michel variety.

Crop rotation mainly guards against the problems caused by what practice?

Growing the same crop year after year depletes particular nutrients and breeds specialised pests and weeds.

Which Briton popularised the four-course rotation of wheat, turnips, barley and clover?

Including fodder and grazing crops let livestock be bred year-round, a key step in the British Agricultural Revolution.

In the medieval three-field system, what happened to the third field each year?

One field took winter wheat or rye, one took nitrogen-fixing legumes like peas and beans, and the resting field fed grazing animals.

Jethro Tull developed a horse-drawn seed drill in which year?

It sowed seeds economically in neat rows, and he later added a horse-drawn hoe. His methods helped drive the British Agricultural Revolution.

Before the seed drill, most seed was planted by which wasteful method?

A drill can improve the ratio of seeds harvested to seeds planted by as much as eight times, while saving time and labour.

In English landownership, what term describes fencing off common land from commoners?

Agreements could be formal or informal, and the process reshaped the English countryside and rural society.

John Deere's breakthrough plough solved which problem with rich Midwestern soil?

His highly polished steel surface let the soil slide off, which eased farming on the prairie and encouraged migration to the Great Plains.

John Deere was a blacksmith who opened his first shop in 1837 in which Illinois town?

He had moved from Vermont to escape bankruptcy. The company, now headquartered in Moline, has used a leaping deer logo for over 155 years.

Cyrus McCormick was granted his patent for the mechanical reaper in which year?

His first demonstrations came in 1831 at Steeles Tavern, Virginia. His company later became part of International Harvester in 1902.

McCormick's reaper built on his father's work with the aid of Jo Anderson, who was what?

McCormick always claimed sole credit, though several engineers produced working reapers in the 1830s, including Patrick Bell in Scotland.

Who built and patented the first combine harvester in the United States in 1835?

The machine combined several harvest steps into one process. Holt produced a self-propelled harvester in 1911.

Which three operations did the combine harvester bring together into one machine?

It is counted among the most economically important labour-saving inventions, sharply cutting the share of people working in agriculture.

John Froelich built a gasoline-powered tractor in 1892 in which US state?

John Charter had combined Otto engines with a steam-engine chassis in Illinois in 1889. The word tractor comes from the Latin trahere, to pull.

Henry Ford introduced which wildly popular mass-produced tractor in 1917?

It was built in the United States, Ireland, England and Russia. Gasoline tractors caught on in the 1910s as they got smaller and cheaper.

Harry Ferguson applied for a British patent in 1926 for which tractor innovation?

Implements on it can be raised and lowered hydraulically with a lever. Before that, the drawbar was almost the only way to attach equipment.

Eli Whitney's cotton gin, created in 1793, did what to cotton?

Handheld roller gins had existed in India since about 500 AD. Whitney's wire hooks and brushes made the job fast enough to transform the South.

US cotton production rose from 750,000 bales in 1830 to how many in 1850?

The boom deepened the South's dependence on plantation agriculture and the labour of enslaved people.

The Haber process converts atmospheric nitrogen into what?

It uses hydrogen and a finely divided iron catalyst. Fritz Haber and Carl Bosch won Nobel Prizes in Chemistry in 1918 and 1931.

The Haber process was first run on an industrial scale in 1913 at whose Oppau plant?

Output reached 20 tonnes a day by 1914. During World War I the process supplied nitrates for munitions as well as farm inputs.

Who is often called the father of the Green Revolution?

He is credited with saving over a billion people from starvation, a figure traced to a 1997 article by Gregg Easterbrook.

Borlaug developed his semi-dwarf, high-yield wheat while working in which country?

He then led their introduction, along with modern techniques, to Mexico, Pakistan and India in the mid-20th century.

In which year was the father of the Green Revolution awarded the Nobel Peace Prize?

Officials phoned his wife at 4 a.m., but he had already left for the test fields in the Toluca valley.

The Green Revolution's high-yielding seeds required far more of what than older varieties?

The package also included pesticides, controlled irrigation and mechanisation, often tied to loans conditional on policy changes.

The Dust Bowl drought of the 1930s came in three waves: 1934, 1936 and which?

Some parts of the High Plains stayed in drought for eight years. Deep ploughing had stripped the native grasses that held the soil.

The devastating dust storm of 14 April 1935 became known by what name?

A cold front from Canada drove walls of dust south at 60 mph. The term Dust Bowl first appeared in an AP story about that day.

Which John Steinbeck novel of 1939 is among the best-known works about the Dust Bowl?

Woody Guthrie's Dust Bowl Ballads and Dorothea Lange's photographs of migrants also captured the era.

Hydroponics grows plants without soil using what instead?

Roots may float free or be supported by inert media like perlite or gravel. A 1938 bulletin by Hoagland and Arnon became a classic of the field.

The first powered farm implements in the early 19th century were what?

Richard Trevithick designed a semi-portable barn engine in 1812. The word tractor was first used for a pulling engine in 1896.