41.8 - Soil-Water-Plant Relationships
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Practice Questions
Test your understanding with targeted questions
Define Root Zone.
💡 Hint: Think of where plants grow underground.
What does Management Allowable Depletion (MAD) refer to?
💡 Hint: Consider how dry the soil should get before watering.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the acronym MAD stand for in relation to irrigation?
💡 Hint: Focus on the management aspect of watering.
True or False: Water Use Efficiency is the ratio of crop yield to water used.
💡 Hint: Remember what WUE measures.
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Challenge Problems
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A farmer has a crop that uses 500 m³ of water and yields 10,000 kg. Calculate the WUE. If the MAD is set at 20%, how much water can be depleted from an available 250 mm of water before irrigating?
💡 Hint: Calculate WUE by dividing yield by water used.
Given a soil moisture level of 80% of field capacity, determine the allowable depletion level if the total available water is 200 mm and the MAD is 30%. How would this affect irrigation scheduling?
💡 Hint: Think about how much water the soil can afford to lose.
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