6424576
Beschreibung
Mindmap von SONG JUN XIAN , aktualisiert more than 1 year ago
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Erstellt von SONG JUN XIAN
vor mehr als 8 Jahre
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SOURCES OF FOOD
- space limitation
- increase in world population
- increase in world population
- intensive production
- improving plant and animal varieties
- improving plant and animal varieties
- CROPS
- SOIL
- NEED
- air
- water
- required for
- growth
- regulated by
- plant hormones
- also used in
- ripening of fruits
- weed killers
- ripening of fruits
- also used in
- plant hormones
- regulated by
- growth
- required for
- sunlight
- air
- can be protected by
- biological control
- which inculde the use of
- Natural enemies
Anmerkungen:
- Animal (e.g)rat destroys crops such as corn and fruits--->Snake Aphids feed on the leaves and stalks of crops---->Ladybird Beetle
- Natural enemies
- which inculde the use of
- chemical control
- which comprises
- which comprises
- biological control
- SOIL
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