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Crop Production and Management. — Science STD 8 — Question

Tamilnadu BoardEnglish MediumSTD 8ScienceCrop Production and Management.2 Marks
Question
What are bio-fertilizer?
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Answer

  1. Bio-fertilizers are organisms which bring about soil nutrient enrichment.
  2. Nitrogen fixing microorganisms have the capability of converting free nitrogen into nitrogenous compounds and make the soil fertile.
  3. Eg – Nostoc.

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