Blood meal contains

A. 3 - 4% N

B. 8 - 10% N

C. 13 - 20% N

D. 30 - 35% N

Answer: Option C

Solution(By Examveda Team)

A blood meal is extremely rich in Nitrogen. It contains about 13 - 20% Nitrogen, 1% phosphorous and 0.6% of potassium. It is a dry, inert powder made from blood, used as a high-nitrogen organic fertilizer, non-synthetic and high protein animal feed.
A blood meal is composed of protein mostly, small amounts of fats and ash. It usually comes from cattle or hogs as a slaughterhouse by-product.