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Describe how humans have increased food production, limited to:
Describe the advantages and disadvantages of large-scale monocultures of crop plants
Describe the advantages and disadvantages of intensive livestock production
The global human population continues to grow, creating an urgent need to produce more food. Between 1950 and 2012, world grain production (including cereals like wheat and rice) increased from approximately 0.6 trillion tonnes to nearly 2.4 trillion tonnes - a dramatic fourfold increase.
This massive increase in food production has been achieved through several key methods that have transformed agriculture worldwide.
Modern agricultural machinery has revolutionized farming by allowing farmers to cultivate much larger areas of land far more efficiently than traditional methods.
Key advantages:
Comparison of methods:
| Traditional Method | Modern Method |
|---|---|
| Oxen pulling simple wooden plough | Tractor pulling large ploughing attachment |
| Very slow process | Much faster operation |
| Cannot plough deeply | Can plough deeply into soil |
| Limited area coverage | Can cultivate large areas efficiently |
Example: A combine harvester can harvest, thresh, and clean grain crops in a single operation, dramatically reducing the time and labour needed compared to traditional manual harvesting.
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