What is the use of biochar in farming?
- 1. Biochar can be used as a part of the growing medium in vertical farming.
- 2. When biochar is a part of the growing medium, it promotes the growth of nitrogen-fixing microorganisms.
- 3. When biochar is a part of the growing medium, it enables the growing medium to retain water for longer time.
Which of the statements given above is/are correct?
1 and 2 only
2 only
1 and 3 only
1, 2 and 3
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC IAS – 2020
Statement 2 is correct: Biochar provides a porous structure and a stable surface that can serve as a habitat for beneficial soil microorganisms. Studies have shown that biochar can enhance the growth and activity of nitrogen-fixing bacteria and other microbes beneficial for plant growth, both in soil and soilless media.
Statement 3 is correct: Biochar has a high surface area and porous structure which allows it to absorb and retain water within the growing medium. This improved water retention capacity helps keep the medium moist for longer periods, reducing watering frequency and conserving water.