Farming-B4
- Created by: Shannon
- Created on: 27-05-13 13:49
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- Farming
- Pesticide disadvantage-s
- Accumulate in food chains, killing predators
- Harm organisms that are not pests
- Persistant-take time to become harmless
- Biological control
- Living organisms to control pests
- Ladybirds eat aphids
- Do not need replacing once introduced
- Can be pests, may not work e.g. cane toads
- Affect sources of food- unexpected results
- Living organisms to control pests
- Intensive farming-efficient producing large yield cheaply, animal cruelty
- Low energy transfer-less energy on heat, more on growth
- Organic farming
- Crop rotation-nitrogen fixing crops
- Vary seed planting times
- Avoids expensive fertilisers, but produce is smaller
- Hydroponics-recycle aerated water containing minerals without water
- Useful in barren soil or low rainfall areas
- Better control over soil disease
- Grow many plants in a small space
- Useful in barren soil or low rainfall areas
- Pesticide disadvantage-s
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