Possible solution |
How it works |
Advantages |
Disadvantages |
Food aid |
This can be short (after a disaster or in a crisis) or long term (often given to the LEDC government to distribute).
The aid is given by MEDCs often through organisations such as the World Food Programme (WFP) as well as by Non-Governmental Organisations (NGOs) such as Oxfam and Save The Children.
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- Saves lives during in a crisis
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- Can increase dependence of LEDCs on food aid
- Reduces the sales of crops grown by local farmers
- Expensive to transport
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Irrigation |
The artificial watering of crops - the success of this is dependent on the type of irrigation.
Surface irrigation or drip irrigation
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- Increases crop production/yields in areas with low rainfall
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- Loss of water through evaporation
- Increased salinity of the soil affects crop growth
- Increases pressure on water resources
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Genetically
Modified
(GM) crops
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When the genetic material of a crop is altered to make them disease/pest resistant, have higher yield or be drought resistant |
- Increases the yield of crops as they are not as susceptible to pests/disease
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- Concerns about the impacts on the environment
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Green Revolution and High Yield Varieties |
Involved in the development of high yield varieties of main food crops including wheat, maize and rice |
- Increased yields
- Larger farm incomes increased
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- Needed high inputs of fertilisers/pesticides
- Increased mechanisation leads to fewer jobs
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Education of farmers |
Education for farmers about sustainable farming methods |
- Low cost
- Increases farming knowledge
- Increases yields
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Mechanisation |
Use of tractors and other machines to complete farming tasks |
- Increases yields as more land can be cultivated
- More time efficient
- Less labour needed
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- Reduces jobs in agriculture
- Machines can be expensive to buy and maintain
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Fertilisers/
Pesticides
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Fertilisers are added to increase yields through adding nitrogen
Pesticides are used to kill or deter pests from eating crops
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- Increases the yield
- Reduces losses from pests
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- Damage to the environment e.g. eutrophication
- Concerns about the impact on human health
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Appropriate technology |
Includes methods such as Contour ploughing or intercropping
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- Increases yield as water infiltration improves and soil erosion decreases
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