In the early stages of plant nitrogen deficiency,the most obvious symptoms are _____.

Question

Quizplus · Accepted Answer

In the early stages of plant nitrogen deficiency, the most obvious symptom is the yellowing of the oldest leaves. This occurs because nitrogen is a mobile nutrient within the plant, so when it is scarce, the plant moves it from the older leaves to the newer, growing parts to support their growth, resulting in the older leaves turning yellowish.

In the Early Stages of Plant Nitrogen Deficiency,the Most Obvious