Question

Deficiency symptom of nitrogen and potassium are visible first in_____.

Answer 1

Explanation for correct option:

1. The deficiency of potassium in plants is visible in the leaves first.
2. They start to turn yellow and brown with scorches present on them. However, the first symptoms of nitrogen deficiency in plants is the yellowing of leaves.
3. Since the plants are unable to make enough chlorophyll and hence start to appear pale green or yellow.

Final answer: Deficiency symptom of nitrogen and potassium are visible first in senescent leaves.