Course Content
Learn Principles of Agronomy — B.SC agriculture
About Lesson
  1. Chemical fertilizers are costly, causing environmental pollution and human health hazards, while bio-fertilizers are eco-friendly, non-toxic and cheaper natural resources.
  2. They help in the establishment and growth of crop plants and trees by providing plant nutrients and increase the fertility status of the soil also.
  3. They enhance bio-mass production and grain yields by 10-20%.
  4. Approximately 25% of chemical fertilizer can be substituted with the use of bio-fertilizer therefore bio-fertilizers are useful for sustainable agriculture.
  5. They play an important role in agro-forestry or silvipastoral systems.
  6. They protect plants from several fungal diseases by producing fungi static substances.
  7. Bio-fertilizers also increase seed germination by producing plant growth substances and hormones.
  8. Algal bio-fertilizer can be used for reclamation of sodic saline soil also.
  9. They are suitable in organic farming.
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