What can be the impact of excessive/inappropriate use of nitrogenous fertilizers in agriculture? 1. Proliferation of nitrogen-fixing microorganisms in soil can occur. 2. Increase in the acidity of soil can take place 3. Leaching of nitrate to the ground-w

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Q: 61 (IAS/2015)
What can be the impact of excessive/inappropriate use of nitrogenous fertilizers in agriculture?
1. Proliferation of nitrogen-fixing microorganisms in soil can occur.
2. Increase in the acidity of soil can take place
3. Leaching of nitrate to the ground-water can occur.
Select the correct answer using the code given below.

question_subject: 

Science

question_exam: 

IAS

stats: 

0,137,139,33,8,137,98

keywords: 

{'nitrogenous fertilizers': [0, 0, 0, 1], 'nitrogen': [1, 1, 0, 2], 'nitrate': [0, 0, 1, 4], 'agriculture': [5, 1, 0, 6], 'soil': [7, 0, 4, 7], 'inappropriate use': [0, 0, 0, 1], 'proliferation': [0, 0, 0, 1]}

The correct answer is:

2 and 3 only.

Excessive/inappropriate use of nitrogenous fertilizers in agriculture can lead to an increase in soil acidity (statement 2) and leaching of nitrate to the groundwater (statement 3). Proliferation of nitrogen-fixing microorganisms in the soil (statement 1) is not a direct impact of excessive/inappropriate use of nitrogenous fertilizers.