Practice Criteria For Assessing Irrigation Water Quality (40.2)

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6 sample questions

Question 1.
What does Electrical Conductivity (EC) measure in irrigation water?
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Think about how salinity affects plants.
Question 2.
What is considered an excellent EC value?
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It's a number smaller than 1.
3Question 3.
What is the acceptable EC level for excellent water quality?
- > 0.7 dS/m
- < 0.7 dS/m
- 3.0 dS/m
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Focus on the lower numbers for better water quality.
4Question 4.
Sodium Adsorption Ratio (SAR) higher than 18 is considered:
- True
- False
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Think about the thresholds provided for SAR.
Question 5.
Given a water sample with an EC of 4.0 dS/m, what steps should the farmer take to ensure the irrigation practices do not compromise crop yields?
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Think about the combination of management practices discussed.
Question 6.
If the SAR for a water source is 22, what implications does this have for soil health and what management practices could be employed?
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Remember the effects of SAR discussed in class.

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