INSIGHT UPSC QUIZ

Science & Technology General Science
Q.

 Manure contains large quantities of organic matter and also supplies small quantities of nutrients to the soil. In this context, consider the following statements:

1. The organic matter in manure helps in improving the soil structure.

2. It increases the water holding capacity in sandy soils.

3. It causes water logging in clayey soils.

Select the correct answer using the code given below:

Explanation:

ANSWER: (B) 

  • Both statements 1 and 2 are correct.

Manure contains large quantities of organic matter and also supplies small quantities of nutrients to the soil. Manure is prepared by the decomposition of animal excreta and plant waste. Manure helps in enriching soil with nutrients and organic matter and increasing soil fertility. The bulk of organic matter in manure helps in improving the soil structure. This involves increasing the water holding capacity in sandy soils. 

  • Statement 3 is not correct.

In clayey soils, the large quantities of organic matter help in drainage and in avoiding water logging. 

 

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