6424643
Descripción
Mapa Mental por Muhammad Noor, actualizado hace más de 1 año
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Creado por Muhammad Noor
hace más de 8 años
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sources of food new
- crops
- sunlight
- water
- Air
- required for growth
- regulated by plant horemones
- Also used in ripening of fruit
- Weed killers
- Also used in ripening of fruit
- regulated by plant horemones
- required for growth
- Air
- water
- biological control
- natural enemies
- natural enemies
- chemical control
- herbicides
- pesticides
- cause pollution
- air and water pollution
- air and water pollution
- cause pollution
- herbicides
- Soil
- fertilisers
- nutrients
- nutrients
- Appropriate PH
- Litmus paper,universal indicator, pH meter
- Litmus paper,universal indicator, pH meter
- fertilisers
- sunlight
- Need to be increased due to
- Space limtation
- Increase in world population
- Space limtation
- can be increased by
- intensive production methods
- improving plant and animal varieties
- intensive production methods
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