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