Q100.
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?
Answer
D
Explanation
Statement 1 is correct: As the use of soilless, hydroponic growing methods becomes more prevalent among crop producers, researchers are looking for new materials that can help growers save money, produce healthy plants, and contribute to sustainable practices. biochar, a charcoal-like material produced by heating biomass in the absence of oxygen, can help "close the loop" when used as a substrate for soilless, hydroponic tomato production. "This method could provide growers with a cost- effective and environmentally responsible green-waste disposal method, and supplement substrate, fertilizer, and energy requirements. Statement 2 is correct: Biochar has the potential to boost the natural ability of legumes to fix nitrogen to the soil. Adding biochar to soil not only provides a way to sequester carbon, but also