What can be the impact of excessive/inappropriate use of nitrogeneous fertilizer in agriculture?
- Proliferation of nitrogen-fixing microorganisms in soil can occur.
- Proliferation of nitrogen-fixing microorganisms in soil can occur.
- Leaching of nitrate to the ground-water can occur.
Select the correct answer using the code given below.(2015)
a) 1 and 3 Only
b) 2 Only
c) 2 and 3 Only
d) 1, 2 and 3
Answer: C
Increasing the amount of nitrogen based fertilizer does not lead to more micro-organisms in the field. If it did, just one dose of fertilizer would make a farm nitrogen rich for years together.
Excessive use of nitrogen fertilizers resulting in soil acidity is a well-known fact.
Nitorgen fertilizers break down into nitrates and travel easily through the soil. Because it is water-soluble and can remain in groundwater for decades, the addition of more nitrogen over the years has an accumulative effect.
