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How long ago did farming/agriculture begin?
~ 10,000 years ago
Farming was a shift from what for humanity?
Shift from:
- Foraging
- Nomadic lifestyles
Where did farming begin in the world?
Several areas of the world
What countries are part of the Fertile Crescent?
- Turkey
- Iraq
- Syria
- Lebanon
- Palestine
- Jordan
- Iran
What 2 processes made plant domestication possible?
- Crop Rotation
- Irrigation
What did crop rotation benefit?
It improved:
- Soil fertility
- Food production
The 1700s was the era of
Scientific Innovation
The era of scientific innovation ushered in inventions like what?
- Seed drill
- Cotton gin
- Iron plow
- Thresher
What does the seed drill do
Mechanically plant seeds
What does the thresher do
Separate grain kernels from husk
What changed from the 1700s to the 1800s?
There was simply an increase in mechanization
During what era did Fritz Haber make meaningful contributions?
1900s
What happened in 1909?
Fritz Haber developed the ability to synthesize ammonia from hydrogen and nitrogen gas using high heat + pressure
Who led the industrial production of ammonia?
Carl Bosch
What happened in 1913?
Carl Bosch designed the industrial level production of ammonia
Why are Fritz Haber and Bosch important?
They developed our ability to synthesize ammonia from atmospheric nitrogen
Fritz Haber and Bosch's work was important because it led to ________, and allowed for ________.
- led to large-scale fertilizer production
- allowed for today's industrial farming practices
Both Fritz Haber and Bosch received the
Nobel prize
How many munitions plants had the US built by WW2?
10
What were munitions plants for? What did they cause an increase of?
- Munitions plants = N synthesis
- Increase in N production
What was the Green Revolution?
The point (following WWII) where munitions plants changed their operations to support fertilizer and pesticide production, instead of that of bombs
What is the grass family's name
Poaceae
Why is the Poaceae an important family?
Most economically important of all flowering plants
Which plant family is of greatest importance to humantiy?
Poaceae
Poaceae make up what % of the world's vegetation? How many species is this?
- 25% of world's vegetation
- 12,000 species
What is the cereal of a grass?
Cereal = edible fruit
- e.g. the grain of grass
What is the basic foods of civilization?
Cereal/edible fruit
What is the top crop globally?
Sugarcane
The annual production of sugarcane totals how many tons?
1.8 billion tons
What is the 2nd top crop globally?
Corn (maize)
What is the 3rd top crop globally?
Wheat
What is the 4th top crop globally?
Rice
Though ranked the 11th top crop, why is barley important?
It is a part of the grass family
Which 5 top crops are part of the grass family?
1) Sugar cane
2) Maize
3) Wheat
4) Rice
11) Barley
What 3 are the most extensively grown of all food crops?
Corn, rice, and wheat
Poaceae are what type of plant (in terms of leaf)
Monocots/monocotyledons
What type of leaves do poaceae have
Linear leaves
What type of venation do poaceae leaves have?
Parallel venation
Many monocot Poaceae have what type of stems?
- Rhizomes (underground)
OR
- Stolons (aboveground)
w/vegetative propagation
Poaceae are usually not woody, they're ______
herbaceous
Poaceae are ______ or _______
Annual OR perennial
Annual meaning
they complete their lifespan in 1 growing season
Perennial means
they produce fruit for more than one growing season (year)
The bracts that surround a flower are called
the Chaff of the grain
Outer wall of a grain is the
Bran
Most of the seed is __________, which is just ______
- Endosperm
- This is starch
The embryo is also called the
germ
When refined, all but what is removed from a fruit?
The starchy endosperm
The fruit/grain of a grass is commercially available as (3), which is just the starchy endosperm we consume
- White flour
- Corn starch
- White rice
Whole grain products have
- bran
- germ
- endosperm
- Only the chaff's removed
Whole grain products are higher in
- Fiber
- Protein
- Vitamins
Wheat is native to the
Fertile crescent
Wheat's wild ancestor
Einkorn wheat
How did wheat spread?
Early trade routes to Europe, Eurasia, N. America
Global expansion occurred in the 1500s b/c of
European colonization
How did European colonization affect local food systems?
They REPLACED local food systems, with wheat becoming a dominant crop
90% of global wheat is
Triticum aestivum
Triticum aestivum is found in
Bread, pastries, and breakfast cereal
5-8% of global wheat is
Triticum durum
Triticum durum is found in
Pasta, noodles, and some bread
Bread is known as "____" in many cultures
"staff of life"
Most wheat in the US is
Refined
To make white flour, what parts are removed and what parts are processed?
Removed: Bran + germ
Processed: Endosperm
When making white flour, what are we stripping the grain of?
- Dietary fiber
- Minerals
- Vitamins
Bleached flour is achieved with what bleaching agents
- Benzoyl peroxide
- Chlorine gas
Bleaching agents speed up
the flour's aging process
Bleaching flour results in what physical qualities
- Whiter
- Finer
- Softer
Flour was milled white in the 1870s b/c
- Milling = removes oils
- Removed oils = spoils slower
Why was milled flour a sign of wealth?
B/c it was not readily available, thus accessible only to the rich
Today's flour is enriched to add
- Iron
- Niavin
- Thiamin
- Rlavin
Corn species name
Zea mays
Corn is native to
Southern Mexico
Corn is domesticated from what wild grass
Teosinte
- Of the indigenous peoples
Corn has a long history of what practice
- Interplanting
- AKA Milpa
Milpa
The symbiotic/symbolic agricultural system of interplanting
The way the 3 sisters are grown is representative of
Milpa
3 Sisters
Corn, squash, beans
Corn was introduced to Europe when? By whom?
- 1493
- Columbus
What's the leading crop in the US?
Corn/maize
What is a subsidy
Financial support to farmers/agribusinesses from the gov't to:
--> supplement income
--> manage commodity supply
--> influence cost/supply of commodities
The prices of subsidized staples are
low
Subsidized staples are used
to make the products used everywhere (e.g. high-fructose corn syrup)
Subsidized staples add _____ and ____ to foods at a _____ cost
Subsidized staples add FAT and SUGAR to foods at a LOW cost
Why is there a price gap between high sugar/fat content foods, and nutritional foods?
Subsidized staple crops are cheap, so they're widely used to make foods (e.g., high-fructose corn syrup and corn-fed meats) inexpensively
--> This makes high-sugar/high-fat foods cheaper than more nutritious foods, creating a price gap.
Transgenic/GMO corn was first commercialized in
1996
GMOS are classified as
having 1 or more useful traits (added to them)
GMO crop traits
- herbicide resistance
- insect resistance
- disease resistance
Bt =
Bacillus thuringiensis
Bt crops are genetically modified to
contain the endospore (crystal) toxins of the bacterium
Bt crops are resistant to
certain insect pests
What 2 Bt crops are most common and grown on the most cumulative area worldwide?
Bt corn and cotton
Majority of corn grown in the US is used for
Animal/livestock feed
Ethanol for fuel is derived majorly from
Corn
What industrial and pharmaceutical products are made by corn?
- Laundry starch
- Packing material
- Lubricants
Corn can be used to make _______ and ________ products (e.g. filler, glue)
Industrial and pharmaceutical
Most US grown corn is used in ______ and ________ use
Most US grown corn is used in ANIMAL FEED and ALCOHOL-FUEL use
Asian rice species
Oryza sativa
____ feeds more people worldwide than any other crop
RICE feeds more people worldwide than any other crop
Rice is native to _____, and is domesticated in ______
Rice is native to ASIA, and is domesticated in CHINA
African rice species
Oryza glaberrima