Biofertilizers Quiz
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Questions and Answers

What is the main purpose of biofertilizers?

  • To improve soil fertility and crop productivity (correct)
  • To increase water retention in the soil
  • To control pests and diseases in crops
  • To provide structural support to plants
  • Which microorganism is commonly used in biofertilizers to fix atmospheric nitrogen?

  • Mycorrhiza
  • Rhizobium (correct)
  • Bacillus thuringiensis
  • Azotobacter
  • What is the role of phosphate-solubilizing bacteria in biofertilizers?

  • To reduce the acidity of the soil
  • To make phosphorus more available to plants (correct)
  • To increase nitrogen content in the soil
  • To enhance root growth in plants
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