Zusammenfassung der Ressource
Sources of food Jodi Poh
- Crops
- Soil
- Fertilisers
- Nutrients
- Appropriate pH
- Litmus paper
- Universal Indicator
- pH meter
- Can be protected by
- Biological control
- Natural enemies
- Chemical control
- Herbicides
- Pesticides
- Can cause
- Pollution
- Air Pollution
- Water pollution
- Sunlight
- Water
- Air
- Growth
- Plant Hormones
- Ripening of fruits
- Weed killers
- Can be increase by
- Intensive production methods
- Improving plant and animal varieties