20.3.1 - Direct Methods
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Practice Questions
Test your understanding with targeted questions
What does 'evapotranspiration' refer to?
💡 Hint: Think about both water loss from soil and plants.
Define a lysimeter.
💡 Hint: What setup does it involve?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary function of a lysimeter?
💡 Hint: Think about how water dynamics are tracked.
Direct methods provide high accuracy in measuring ET. True or False?
💡 Hint: Consider the nature of data collection.
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Challenge Problems
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You set up a lysimeter in a field and record the following data: Initial weight: 100 kg, After one week: 90 kg. Calculate the ET over that week. If water input from rainfall was 5 kg, what is the net ET?
💡 Hint: Weight change minus water inputs gives you the ET measure.
Discuss how adopting the field experimental plot method can influence irrigation practices in a given agricultural setup. Provide examples of potential changes in practice.
💡 Hint: Think about how informed decisions improve resource management.
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