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6.2 Food production-nutrition and types of agriculture (Techniques of…
6.2 Food production-nutrition and types of agriculture
Techniques of Agriculture
Traditional Agriculture
Provides 20%of world crops
Combines energy from the sun and human work
Can be intensive by inputting extra work from humans
Policulture
Natural Fertilizers
Industrialized Agriculture
Produces 80% of world food
Uses Irrigation
Uses synthetic fertilizers
Synthetic Pesticides
Plantation Agriculture, used in less developed countries
Organic Agriculture
Crops are grown without
Synthetic fertilizers
Synthetic Pesticides
Inorganic Fertilizers
Slash and Burn
Involves burning a plot of land and using it for growing crops and shifting area, allowing the previous one to "cure"
Food Production
Crops
Composed mainly of Rice, Wheat and Corn
77% of World's food
Meat
Get rid of Rangelands, Pastures and forests
Cause a huge waste of water
Fish
Supplied by fish farms and fisheries mainly
Lack of food diversity conforms as a violation of the principle of sustainability
Nutrition
Overnutrition
When food energy intake is greater than that which is needed, and becomes excess body fat
To maintain good health and be able to resist desease
Malnutrition
A diet that provides enough energy, but lacks proteins
Undernutrition
Amount of nutrients does not meet the bodily needs