40.2.5. Boron Toxicity

Try these first

1. 1.

   What is the safe level of boron in irrigation water?

   Hint

   Think of the numbers that indicate safety levels.

2. 2.

   Name one sensitive crop affected by high boron levels.

   Hint

   Think of common garden vegetables.

3. 3.

   What is boron classified as?

   • Essential nutrient
   • Toxic metal
   • Neutral element

   Hint

   Focus on its importance to plant health.

4. 4.

   True or False: Sensitive crops tend to show toxicity symptoms at boron levels above 0.5 ppm.

   • True
   • False

   Hint

   Remember the toxicity levels discussed.

5. 5.

   A farmer tests the boron concentration in their irrigation water and finds it to be 2.5 ppm. What steps should they take before irrigation to prevent damage to sensitive crops?

   Hint

   Think about blending techniques and water quality improvement methods.

6. 6.

   Evaluate the economic impact of boron toxicity on crop yield, considering a scenario where a farmer's corn yield drops by 30% due to boron levels above 1.0 ppm. How should the farmer alter their practice?

   Hint

   Reflect on sustainable practices and management adjustments.