Nitrogen deficiency is described as:

Nitrogen deficiency is described as:

• A. A nutrient deficiency
• B. An environmental plant disease
• C. A pest infestation
• D. A beneficial soil amendment

Answer: (B)

Nitrogen deficiency is a nutrient deficiency. Nitrogen is a essential macronutrient needed for leaf growth and chlorophyll formation. When soil can’t supply enough available nitrogen, plants show characteristic signs: older leaves yellowing and pale, overall slower growth, and reduced vigor. This happens because nitrogen is mobile within the plant, so it is moved to new growth first, leaving the older leaves to show the deficiency. To correct it, apply a nitrogen-containing fertilizer or organic amendments that supply nitrogen and ensure soil conditions support its mineralization. It isn’t a disease caused by pathogens, nor a pest infestation, nor a beneficial soil amendment.

Nitrogen deficiency is a nutrient deficiency. Nitrogen is a essential macronutrient needed for leaf growth and chlorophyll formation. When soil can’t supply enough available nitrogen, plants show characteristic signs: older leaves yellowing and pale, overall slower growth, and reduced vigor. This happens because nitrogen is mobile within the plant, so it is moved to new growth first, leaving the older leaves to show the deficiency. To correct it, apply a nitrogen-containing fertilizer or organic amendments that supply nitrogen and ensure soil conditions support its mineralization. It isn’t a disease caused by pathogens, nor a pest infestation, nor a beneficial soil amendment.