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?
A.1 and 3 only
B.2 only
C.1, 2 and 3✓ Correct
D.1 and 2 only
Explanation
Biochar is used as a growing medium in vertical farming, enhances microbial activity (including nitrogen fixers) and significantly improves water-retention capacity of soils. All three statements are correct.
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