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Stack #4594128

QuestionAnswer
Traditional agriculture (old style) People and animals do most of the work. Smaller farms. Less machines and less fuel.
Industrial agriculture (modern large-scale) Uses big machines (tractors, harvesters). Uses lots of fossil fuels (gas/oil). Often uses monoculture Uses synthetic fertilizers and pesticides a lot. Produces most of the world’s food today.
monoculture growing one crop over a huge area.
The Green Revolution This is a big time period when farming changed and food production increased a lot.
how did food production increase green revolution Better crop types More irrigation Fertilizers & pesticides More machines
green revolution pros More food for more people
green revolution cons Pollution, soil damage, high water use
soil components Tiny rocks & minerals Nutrients Organic matter (dead plants/animals) Water & air Living things (worms, bacteria, fungi)
Soil layers top O horizon (dead plants)
Soil layers 2nd A horizon (topsoil)
Soil layers 3rd B (subsoil),
Soil layers 4th c horizon
Soil layers last R (bedrock).
Soil particle sizes clay tiny
Soil particle sizes silt Medium
Soil particle sizes sand large
Loam mix of sand + silt + clay → best for farming
Irrigation Adding water when rain isn’t enough
Irrigation uses Dry climates, water-heavy crops (rice)
Irrigation fact 70% of freshwater withdrawn is for irrigation
Irrigation types (least → most efficient): Flood/furrow → lots wasted Center pivot/spray → better Drip → most efficient ✅
best way to reduce water use drip irrigation
What fertilizers do They add nutrients plants need
Inorganic fertilizer man-made or mined works fast
Organic fertilizer compost, manure, plant material more natural
Eutrophication Too many nutrients in water → algae overgrow → oxygen drops → fish & water life die.
Created by: user-1953981
 



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