General Knowledge · Geography
काली मिट्टी में आमतौर पर निम्नलिखित में से किस पोषक तत्व की कमी होती है?
- 1नाइट्रोजन✓
- 2मैग्नीशिया
- 3लोहा
- 4चूना
सही उत्तर देखें
नाइट्रोजन
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