Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
animal used as labor during the 1700's-1800's
|
Oxen
|
|
|
who taught the colonists how to plant corn
|
Native Americans
|
|
|
this cultivating tool was used during the 1700's
|
wooden plow
|
|
|
what harvesting tool was invented and used in a standing up position
|
scythe
|
|
|
who developed the steel plow
|
John Deere
|
|
|
by planting fish in the ground next to the corn provided what
nutrient |
nitrogen
|
|
|
who patented barbed wire
|
Joseph Glidden
|
|
|
chemical fertilizers became popular spurring the green revolution during what time
|
the 1950's
|
|
|
who invented the cotton gin
|
Eli Whitney
|
|
|
the horse drawn combine was introduced during this time
|
1890's
|
|
|
subsistence (definition)
|
farmers grow just enough crops to survive
|
|
|
which implement replaced the wooden plow
|
cast iron plow
|
|
|
this development/invention led to the expansion of farms
|
barbed wire
|
|
|
the mechanical reaper was used heavily for this crop
|
wheat
|
|
|
George Washington Carver found
new used for this crop |
peanuts
|
|
|
what happened during the 1930's that damaged/destroyed agriculture in the Midwest
|
the Dust Bowl
|
|
|
when was DDT banned in the U.S.
|
1972
|
