The C : N ratio of farmyard manure is
A. 20 : 1
B. 10 : 1
C. 30 : 1
D. 40 : 1
Answer: Option D
Solution (By Examveda Team)
C : N ratio is a ratio of the mass of carbon to the mass of nitrogen in a substance.FYM (Farmyard manure) is an important organic resource for agricultural production in live-stock-based farming systems in the semi-arid tropics of India.
The C : N ratio of farmyard manure is 40 : 1.
This Question Belongs to Agriculture >> Soil Science
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