Q12: Which nutrient is often a limiting factor in agricultural production? - Section A: General Agriculture - Renewable Energy Engineering- ICAR JRF/SRF 2024 | Agrigyan
Nitrogen (N): The primary macronutrient that is most widely deficient and universally limiting for crop growth and yield across virtually all agro-climatic zones and soil orders in India. (Correct answer)
Carbon: Readily acquired by plants from atmospheric carbon dioxide ($CO_2$) during photosynthesis and is not a soil-supplied mineral limiting nutrient.
Oxygen: Absorbed freely from air and soil pore spaces during root respiration and is not a limiting mineral fertilizer element.
Hydrogen: Supplied in abundant quantities through water ($H_2O$) absorbed by roots during transpirational uptake.
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