In a good quality manure C/N ratio should not be more than

A. 10

B. 20

C. 35

D. 50

Answer: Option A

Solution(By Examveda Team)

C : N ratio is Carbon to Nitrogen ratio in green manure. Carbon and nitrogen are the most important of the many elements required for microbial decomposition of organic matter to produce compost.
In good quality, the manure C/N ratio should not be more than 10.