40.2.2 - Sodium Hazard (Sodium Adsorption Ratio - SAR)
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What does the Sodium Adsorption Ratio (SAR) measure?
💡 Hint: Think about the ions mentioned.
What is an acceptable SAR value for irrigation?
💡 Hint: Recall the safety zones mentioned earlier.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does a high Sodium Adsorption Ratio indicate?
💡 Hint: Think about how sodium interacts with soil particles.
True or False: An SAR value below 10 is considered safe for most irrigation practices.
💡 Hint: Recall the safety thresholds we discussed earlier.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
A region's irrigation water has SAR values ranging from 5 to 20. Analyze management strategies for farmers who need to utilize this water sustainably.
💡 Hint: Consider the implications of varying SAR levels.
Calculate the SAR for a water sample with sodium at 12 mmol/L, calcium at 8 mmol/L, and magnesium at 3 mmol/L. Discuss water quality concerns if SAR exceeds acceptable levels.
💡 Hint: Refer to the formula for calculation.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.