Corn
HISTORY
Corn is a grass native to America, which the people in Central Mexico began cultivating at least 7,000 years ago.
Corn was a staple in the diet of many Native American groups. They used all the parts of corn: the sugary leaves were used as a sort of chewing gum; immature corn was their vegetable; and dry, mature kernels were ground into flour.
Today, corn is grown on every continent except Antarctica.
Corn is the number one grain crop in the United States. Most corn grown in the U.S. is a variety called field corn or dent corn, which is used as livestock feed and processed into a variety of products. The corn we eat is called sweet corn.
PRODUCTION
Corn is planted in the spring from a seed called a kernel. The seed will grow into a stalk which then produces ears of corn. The ears of corn mature over the summer. When they are ready to harvest, in late August or early September, they will turn downward to the ground.
Farmers use a machine called a combine to harvest corn. Once in the combine, the ears enter a sheller. The sheller is a metal cylinder that rotates at a high speed and removes all husks and kernels from the cob. The corn is then loaded onto trucks and transported to a nearby grain elevator. The corn is stored at the elevator in bins until it is sold and shipped out for processing.
An ear of corn averages 800 kernels in 16 rows. An acre of corn yielding 100 bushels produces approximately 7,280,000 kernels. Illinois and Iowa are the top producing states.
PRODUCTS
There are more than 3,500 different uses for corn. Primary products are cornstarch, sweeteners, food and industrial items.
There are many edible uses for corn including aspirin, marshmallows, ice cream, cereals, corn chips, cornmeal, baking mixes and more.
Some non-edible products that contain or are made from corn include ethanol, book binding, ink, glue, shoe polish, cosmetics, fireworks, paint, paper, crayons, chalk, toothpaste, soap, candles, batteries and charcoal.
NUTRITION
The MyPlate guidelines consider corn a member of the vegetable group. Everyone should have 3-5 servings of vegetables each day.
Corn is low in fat and calories and provides almost three grams of dietary fiber per ear. The starch found in corn is a carbohydrate.
EXPORT INFORMATION
The U.S. is the largest field corn exporter. We use 80% of what we produce and export the other 20%. Our best customers are Japan, Mexico, Taiwan, Canada, Egypt and Columbia.
TYPES OF CORN
Field Corn / Dent Corn:
hard shell and full of starch
99% of corn grown in the U.S.
used as livestock and poultry feed
processed into a variety of products—corn syrup, cornstarch, sorbitol, glue, fireworks, crayons, chalk, cosmetics, ink, etc.
Sweet Corn:
Zea saccharata
less than 1% of the corn grown in the U.S.
sugary seeded type of corn
the corn we eat—corn on the cob, canned corn and frozen corn
U.S. is the No. 1 producer of sweet corn
ANATOMY
The corn kernel is composed of 4 main parts.
Endosperm: largest part of kernel where energy is stored; provides starch
Pericarp: waterproof outer covering
Germ: contains the genetic information for the plant; used for corn oil
Tip Cap: attaches the kernel to the cob
TERMS TO KNOW
By-products - something produced in addition to the main product
Consumer - a person who purchases goods and services for personal use
Distributors - wholesalers or middlemen engaged in the distribution of a category of goods
Goods - merchandise or possessions
Market - a regular gathering of people for the purchase and sale of provisions, livestock and other commodities
Natural Resources - materials or substances such as minerals, forests, water and fertile land that occur in nature and can be used for economic gain
Producer - a person, company or country that makes, grows or supplies goods or commodities for sale
Production - the action of making or manufacturing from components or raw materials; the process of being manufactured
Products - an article or substance that is manufactured or refined for sale
RECIPE
Maquechou A’La Avoyelles (Corn Soup)
Serves 6
Ingredients:
4 chicken bouillon cubes
3 quarts boiling water
2 large onions, chopped
2 medium bell peppers, chopped
salt, pepper and garlic powder to taste
2 ½-pound soup bone
16-ounce can whole tomatoes, mashed and undrained
1 cup Ragu spaghetti sauce
1 quart fresh or frozen corn
Directions:
Dissolve bouillon cubes in water; add onion, green pepper, salt, pepper, garlic powder and meat. Simmer until tender, about 45 minutes.
Add tomatoes and spaghetti sauce; heat gently.
Cook corn separately until tender; add to soup.
Simmer soup about 15 minutes. Serve with homemade bread, if desired.
Foods à la Louisiane—a cookbook by the Louisiana Farm Bureau Women
Submitted by Joann Brouillette of Avoyelles Parish
COLORING PAGE
Select the image below to download, print and color this fact sheet. Fit-to-page printing option recommended. See more commodity coloring pages!
LESSON PLANS
Grades 3-5
Corn an A-maizing Plant: Food, Fuel, and Plastic
Do You Know GMO?
Get Popping!
Growing Grains
Inherited Traits in the Living Corn Necklace
Pests and Pesticides in Agriculture
Three Sisters Garden
Grades 6-8
Fueling Up for a Career in Biofuel
Growing America
Inherited Traits in the Living Corn Necklace
Plant Nutrient Deficiencies
The QUEST for the Whole Enchilada
Serious Cereal Science
Grades 9-12
Plant Nutrient Deficiencies
VIRTUAL FIELD TRIPS
360 Illinois Farm Tour: It Starts with a Seed #360Corn (6:26)
360 Farm Tour: As The Corn Grows #360Corn (4:05)
360 Farm Tour: Protecting the Corn #360Corn (4:19)
360 Farm Tour: Harvesting the Corn #360Corn (4:10)
ExplOregon Agriculture - Field Corn Harvest (2:25)
ExplOregon Agriculture - Sweet Corn Harvest (2:10)
Farm Life 360 - Virginia Corn Planting (1:24)
Farm Life 360 - Virginia Corn Chopping (1:46)