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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?

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? Correct Answer 1, 2 and 3

The correct answer is 1, 2, and 3.

Key Points

  • Biochar, a charcoal-like material produced by heating biomass in the absence of oxygen.
    • The use of biochar in vertical farming can increase output significantly. Hence, Statement 1 is correct.
  • Biochar has the potential to boost the natural ability of legumes to fix nitrogen in the soil. 
    • Biochar supporting the life of nitrogen-fixing microorganisms, biochar can also decrease soil nitrogen emission.
    • And also increase nitrogen use efficiency and nitrogen retention in the soil. Hence, Statement 2 is correct.
  • Because of its porous nature, biochar can improve your soil's water retention.
    • Thereby plants will have more water available to them for a longer period of time. Hence, Statement 3 is correct.

Additional Information 

  • Biochar is a high-carbon, fine-grained residue that is currently produced through modern pyrolysis processes.
  • It is the direct thermal decomposition of biomass in the absence of oxygen (preventing combustion).
  • Which produces a mixture of solids (the biochar proper), liquid (bio-oil), and gas (syngas) products. 
  • Biochar is a stable, carbon-rich form of charcoal that is applied to the soil.
  • Some biochars can increase soil fertility, water holding capacity, and crop productivity.
  • The use of biochar in vertical farming can increase output significantly.
  • Adding biochar to soil increases its carbon content and could help mitigate greenhouse gas emissions.
  • Biochar is shown to have an increased abundance of mycorrhizal fungi, assisting nutrient uptake by plants.

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