Edexcel IGCSE Biology · Spec 5.1-5.4
Crop Production
How glasshouses, fertilisers and pest control are used to increase crop yields.
Biology revision video
Crop Production
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Spec 5.1-5.4
What you need to know
- Explain how glasshouses increase yield
- Describe the effects of carbon dioxide, temperature and fertiliser
- Weigh up the pros and cons of pest control
Active recall
Quick check
Answer each question before opening the answer.
Why are crops grown in glasshouses or polytunnels?
To control temperature, light and carbon dioxide levels, increasing the rate of photosynthesis and the yield.
Why are fertilisers added to crops?
To supply mineral ions such as nitrate and phosphate needed for healthy growth.
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