What can be the impact of excessive/inappropriate use of nitrogenous fertilizers in agriculture?
- The proliferation of nitrogen-fixing microorganisms in the soil can occur.
- Increase in the acidity of soil can take place
- Leaching of nitrate to the ground-water can occur.
Select the correct answer using the code given below.
Detailed Explanation:
❌ Statement 1 – Incorrect: Excessive nitrogenous fertilizers suppress nitrogen-fixing microorganisms because abundant soil nitrogen reduces their competitive advantage and metabolic activity.
✅ Statement 2 – Correct: Nitrogenous fertilizers (especially ammonium-based) undergo nitrification, releasing H⁺ ions that increase soil acidity.
✅ Statement 3 – Correct: Excess nitrates (NO₃⁻) are highly water-soluble and leach into groundwater, causing nitrate contamination and eutrophication of water bodies.
Question 2 of 2 Soil Pollution
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