Practice Effective Rainfall (er) (44.3) - Irrigation Requirement and Frequency of Irrigation

Practice: Effective Rainfall (ER)

Lesson 44.3Irrigation Requirement and Frequency of Irrigation

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9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is Effective Rainfall?
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Think about what rainwater is used for in agriculture.
Question 2.
Name one method to estimate Effective Rainfall.
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Consider which organizations provide guidelines for these methods.
3Question 3.
What is Effective Rainfall?
- Total rainfall available for crops
- Rain that is lost to evaporation
- Usable precipitation for crops
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Focus on what is truly usable by plants.
4Question 4.
True or False: All rainfall contributes equally to crop needs.
- True
- False
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Consider the factors that eliminate rainwater availability.
Question 5.
Consider a field that receives 1000 mm of rain per year. If 200 mm evaporates and 150 mm runs off, what is the Effective Rainfall?
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Subtract evaporation and runoff from the total rainfall.
Question 6.
How would you explain the importance of Effective Rainfall in regions prone to drought?
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Think about water scarcity and crop survival strategies.

5 more questions in this section. Enroll free to practise them all.