AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Potash (K) is the nutrient India cannot produce domestically, as the country has no reserves of commercially usable potash or potassium compounds in any form.
This is a direct one-line fact from the Fertilizer Industry passage. Examiners expect you to name the nutrient (potash/potassium) AND give the reason (no domestic reserves) in the same sentence. Both parts are needed for full marks.