5. Quality of Irrigation Water

Try these first

1. 1.

   What is salinity measured by?

   Hint

   Think about the units used to measure electrical conductivity.

2. 2.

   What does a high Sodium Adsorption Ratio (SAR) indicate?

   Hint

   Recall what sodium does to soil structure.

3. 3.

   What does Electrical Conductivity measure?

   • Soil pH
   • Salinity
   • Soil Temperature

   Hint

   Recall what EC is used for in agricultural practices.

4. 4.

   True or False: High SAR is beneficial for crop growth.

   • True
   • False

   Hint

   Think about the effects of sodium on soil health.

5. 5.

   Evaluate the impact of specific ion toxicities on a given crop’s yield based on water quality data provided.

   Hint

   Consult the tolerance charts for different crops which indicate how they respond to ion levels.

6. 6.

   Formulate a comprehensive irrigation water management plan for a farm suffering from high sodicity.

   Hint

   Think broadly about all potential strategies linked to soil health improvement.