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Sources Of Food

Description

3T7_Lee Yi Wei

Mind Map by Benny Lee Yi Wei, updated more than 1 year ago

	Created by Benny Lee Yi Wei over 7 years ago

Resource summary

Sources Of Food

Intensive Production methods
Improving Plat and Animal Varieties
Space limitation
Increase in world population
Crops
1. Sunlight
2. Water
  1. Growth
    1. Plant hormones
      1. Ripening of fruits
      2. Weed Killers
3. Air
4. Soil
  1. Fertilisers
    1. Nutrients
  2. Appropriate pH
    1. Litmus paper
      1. Acidic
        Blue -> Red
      2. Alkalin
        Red -> Blue
    2. Universal Indicator
      1. Acidic
        Red
      2. Alkaline
        Blue/Purple
      3. Netural
        Green
    3. pH meter
5. Biological Control
  1. Natural Enemies
6. Chemical Control
  1. Herbicides
  2. Pesticides
    1. Pollution
      1. Air pollution
      2. Water pollution

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