5.3 Green Revolution
The Green Revolution was a shift in agriculture from a small farms to larger farms, started in 1940s and really took of in the 1960s
New Agriculture strategies and practices
Has positive and negative impacts\
Mechanization - use of machines instead of hand labor
✅ Higher Profit Yield and Profits
✅ Easy to Use
✅ Specialized and upgraded and effiecient
❌ Fossil Fuel issues
❌Compact Soil
❌ Loss of Jobs
High-Yield Variety Crops
✅ Crops can produce higher yields
✅ Better Quality
✅ Shorter Cycle
❌ More Water
❌ Soil Issues
❌ Narrow Genetic diversity
GMOs
✅ Less Pesticides
✅ Saves $
✅ More nutrients
✅ disease risistance
✅ Less pesticides in enviroment
❌ Antibiotic risistance
❌ Seeds Cost more
❌Kills non target species
Sythetic Fertilizer - man made to add nutrients back into soil
✅ Can be customized
✅ Released overtime
✅ Mass produce
✅ Easily Shipped
✅Higher Crop Yield
❌Easily released into runoff
❌Eutrophication
❌Disrupts Nitrogen Cycle
Irrigation - allowed for cultivation of crops in areas previously lacked water
✅ Customizable
✅ Maximizes yield
❌ Depletes FW supplies
❌ Waterlogging
❌Salinization
Pesticides - used to kill insects and other pest (fungi that attacks plants)
✅ Higher Yield
❌ hazardous to user
❌ Hazardous to organisms
❌ Kills beneficial insects
❌ Water Pollution (runoff, loss biodiversity)
5.4 Impacts of Agriculture Practice
Advantages | Disadvantages | |
Slash and Burn |
| |
Monoculture | ||
Fertilizer | ||