Organic fertilizers | Inorganic fertilizers |
1. All plant nutrients are found in them.
| 1. They usually contain 1, 2, 3 elements. |
2. They are more in volume and bulky. | 2. They are relatively low in volume and lighter i.e. concentrated.
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3. They can be easily prepared on the farm like - compost, dung manure, green manure
| 3.These are prepared only in the factory like – urea etc. |
4. Their cost is less.
| 4. These are expensive. |
5. Their quantity has to be put more in the field, because % amount of elements is less in them.
| 5. Due to the high content of these elements, relatively little has to be added.
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6. The effect of organic fertilizers is long-term (2-3 years or more) when applied to the soil.
| 6. When these are put in the field/crop, most of the elements are absorbed by a single crop or in a year. |
7. These residues leave an effect after use.
| 7. These residues do not leave an impact. |
8. By using them, the physical, chemical and biological condition of the land improves, air circulation increases and the temperature remains controlled. | 8. Due to their continuous use, the condition of the land worsens and the crop response to nutrients decreases, air circulation does not increase and temperature is not controlled.
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9. There is no bad effect on the crop if used more.
| 9. The crop gets scorched when applied more in the crops. |
10. No special precautions are required in storage. | 10. Care has to be taken while storing in godowns, otherwise, due to moisture, there are lumps in the fertilizers such as in urea, DAP.
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11. They have to be used 1-1.5 months before the sowing of the crop.
| 11. They can be given on sowing (P, and K fertilizers) and in standing crop in top dressing or foliar spray. |
12. When rotting in the soil, organic acids are released which increases the solubility of other elements.
| 12. Does not happen like this. |
13. The water absorbing and holding capacity of the land increases.
| 13. Does not happen like this. |
14. Helps in the growth of bacteria.
| Does not happen like this. |
15. The C/N ratio remains balanced. | The C/N ratio deteriorates. |
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