Cambridge IGCSE Agriculture
2.5Drainage and irrigation
Drainage and irrigation in Cambridge IGCSE Agriculture: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic61 practice questions3 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 2.5(a)Describe drainage as the downward movement of gravitational water, the draining of waterlogged land by ditches and the loss of nutrients by leaching.
- 2.5(b)Understand the effects of poor drainage on soil organisms and root respiration.
- 2.5(c)Explain the need for irrigation and describe irrigation methods and their effects on crop yield and quality (no crop programmes or equipment specifications).
Lessons
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Irrigation methods and choosing a system
30 min
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Soil drainage, waterlogging and leaching
30 min
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Why farms irrigate and where the water comes from
25 min
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Sample question
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