40.2.1. Salinity Hazard (Total Dissolved Solids - TDS or EC)

Try these first

1. 1.

   What does EC stand for in terms of water quality?

   Hint

   Think about electrical conductivity in water.

2. 2.

   Is an EC of 0.5 dS/m considered excellent, moderate, or unsuitable for irrigation?

   Hint

   Refer to the classification of EC values.

3. 3.

   What does a high EC value indicate about water quality?

   • Low salinity
   • High salinity
   • Moderate salinity

   Hint

   Recall how EC relates to salinity.

4. 4.

   True or False: An EC level above 3.0 dS/m is acceptable for most crops.

   • True
   • False

   Hint

   Think about the classifications of EC values.

5. 5.

   You have irrigation water with an EC of 4.0 dS/m. What strategies would you implement to ensure suitable conditions for crops?

   Hint

   Think about ways to reduce overall salinity levels in irrigation.

6. 6.

   A farmer notices significant leaf burn in crops irrigated with water having an EC of 3.5 dS/m. Explain the relationship between salinity and leaf burn, and suggest a management practice.

   Hint

   Consider how salt levels directly affect plant health.