Question: Which of the following nutrients is not available in fertilizers?
A Nitrogen
B Phosphorus
C Iron
D Potassium
Answer: Iron
| Introduction | Primary Nutrients | Uses |
| Nitrogen-based fertilizer | Nitrogen | · Promotes leafy green growth and overall plant vigor.
· Used for lawns, vegetables and leafy crops. |
| Phosphorus-containing fertilizer | Phosphorus | · Supports root development, flowering, and fruiting.
· Used for flowering plants and fruit trees. |
| Potassium-based fertilizer | Potassium | · Aids in overall plant health, stress resistance and disease prevention. |
| NPK fertilizer contains Nitrogen, Phosphorus and Potassium | Nitrogen, Phosphorus and Potassium | · A balanced fertilizer containing all three primary nutrients.
· Suitable for most plants and gardens. |
| Urea rich fertilizer | Nitrogen | · A high-nitrogen fertilizer often used for grass and lawns.
· Provides a quick green-up effect. |
| Superphosphate | Phosphorus | · Promotes strong root development and flowering in plants like roses and bulbs. |
| Muriate of Potash | Potassium | · Provides potassium for various crops, including fruits and vegetables. |
| Ammonium Nitrate | Nitrogen | · Used for crops like corn and wheat, providing a readily available source of nitrogen. |