Deficiency symptoms of nitrogen occurs first on

A. Upper surface

B. Lower surface

C. Both A and B

D. None of the above

Answer: Option B

Solution(By Examveda Team)

Deficiency symptoms of nitrogen occur in plants and can be first observed on lower leaves that are older. The overall growth of plants becomes poor and leaves become pale green to yellow because the plant become deficient in chlorophyll in the absence of nitrogen.