44.2.1 - Definition
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Practice Questions
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What is Irrigation Requirement?
💡 Hint: Focus on what crops need.
Name the components that account for Irrigation Requirement.
💡 Hint: Think about the water inputs to crops.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for calculating Irrigation Requirement?
💡 Hint: Think about what each letter stands for.
Effective rainfall reduces the need for irrigation.
💡 Hint: Consider how rainfall helps crops grow.
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Challenge Problems
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A farmer has a CWR of 900 mm, receives 250 mm of effective rainfall, draws 80 mm from groundwater, and has 60 mm of soil moisture available. Calculate the Irrigation Requirement.
💡 Hint: Use the IR formula to find the answer.
Consider a crop that requires an IR of 350 mm. If a sudden storm provides 100 mm of effective rainfall, how much irrigation is now needed?
💡 Hint: Subtract the effective rainfall from the initial IR.
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