Typical nitrogen deficiency symptoms in crop plants under high nitrogen content is due to the deficiency of

Correct option is C

✅ (c) Mo – Molybdenum [Hidden Hunger Element] • Molybdenum is essential for nitrate reductase and nitrogenase enzyme activity. • Its deficiency inhibits nitrogen metabolism, even when nitrogen is abundant in the soil. • Symptoms include chlorosis, stunted growth, and leaf scorching, mimicking nitrogen deficiency. • Crucial for legumes and cauliflower.
❌ (a) Zn – Zinc • Involved in auxin synthesis and enzyme activation. • Deficiency causes stunted growth and interveinal chlorosis, not specific to N metabolism.
❌ (b) Mn – Manganese • Plays a role in photosynthesis and enzyme activation. • Does not affect nitrogen utilization directly.
❌ (d) B – Boron • Deficiency leads to poor cell wall formation and reproductive failure. • Unrelated to nitrogen assimilation.