Nitrogen Fixation in Leguminous Plants
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Questions and Answers

What is the main difference between fertilizers and manure?

  • Fertilizers are rich in a particular nutrient, while manure is rich in multiple nutrients.
  • Fertilizers are produced in factories, while manure is produced naturally. (correct)
  • Fertilizers are used for soil irrigation, while manure is used for soil nourishment.
  • Fertilizers are produced naturally, while manure is produced artificially.

What is the benefit of using manure in soil?

  • It decreases soil texture and water retaining capacity.
  • It only replenishes the soil with nitrogen.
  • It does not replenish the soil with nutrients.
  • It improves soil texture as well as its water retaining capacity. (correct)

What is the result of excessive use of fertilizers?

  • It makes the soil less fertile. (correct)
  • It increases the fertility of the soil.
  • It makes the soil more fertile temporarily.
  • It has no effect on soil fertility.

What is the alternative to fertilizers to maintain soil fertility?

<p>Substituting fertilizers with organic manure or leaving the field uncultivated. (C)</p> Signup and view all the answers

What is the purpose of crop rotation?

<p>To replenish the soil with nutrients. (D)</p> Signup and view all the answers

What is an example of crop rotation?

<p>Growing legumes as fodder in one season and wheat in the next season. (D)</p> Signup and view all the answers

What is the effect of fertilizers on water?

<p>They become a source of water pollution. (C)</p> Signup and view all the answers

What is the benefit of using manure in soil nourishment?

<p>It replenishes the soil with nutrients and improves soil texture and water retaining capacity. (D)</p> Signup and view all the answers

What is the purpose of using fertilizers?

<p>To get better yield of crops. (B)</p> Signup and view all the answers

What are some examples of fertilizers?

<p>Urea, ammonium sulphate, super phosphate, potash, and NPK. (D)</p> Signup and view all the answers

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