C : N ratio of normal soil is:

Correct option is A

Correct Answer: (A) 10:1
Explanation:
→ The C:N ratio refers to the ratio of carbon (C) to nitrogen (N) in soil.
→ In normal fertile soil, the C:N ratio is approximately 10:1, indicating there is 10 times more carbon than nitrogen.
→ This ratio is important for microbial activity and decomposition of organic matter in the soil.
→ A balanced C:N ratio ensures efficient nutrient cycling, proper soil fertility, and supports plant growth.
→ Soils with very high C:N ratios can slow down decomposition, while very low ratios may lead to nitrogen loss.
Information Booster:
→ Normal fertile soil has a C:N ratio of 10:1.
→ Indicates carbon content is 10 times nitrogen.
→ Important for microbial decomposition of organic matter.
→ Helps maintain soil fertility and nutrient balance.
→ Extreme ratios affect nitrogen availability and plant growth.
→ Supports efficient recycling of nutrients in agro-ecosystems.
→ Used as a reference in soil management and composting practices.