44.2.4 - Gross and Net Irrigation Requirement
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Practice Questions
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Define Net Irrigation Requirement (NIR).
💡 Hint: Focus on what water is needed for crops.
What does GIR stand for?
💡 Hint: Think about total water applied in irrigation.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does NIR stand for?
💡 Hint: Focus on water requirements.
True or False: GIR is the actual amount of water required by the root zone.
💡 Hint: Consider definitions of terms.
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Challenge Problems
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A farmer needs to determine the water allocation for their multi-crop farm, where a corn crop requires a NIR of 600 mm, soybeans at 400 mm, and wheat at 200 mm. If the efficiency rates for irrigation systems differ (80% for corn, 70% for soybeans, and 60% for wheat), calculate the GIR for each crop, discussing how varying crop requirements impact total water use.
💡 Hint: Focus on the efficiency rates for accurate calculations.
Analyze how improving irrigation efficiency from 60% to 80% affects GIR for a crop with a NIR of 500 mm. Discuss the broader implications for water resource management.
💡 Hint: Consider the difference efficiency makes in water rationing.
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