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प्रश्न
Compare the use of manures and fertilizers in maintaining soil fertility.
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उत्तर
| Manure | Fertiliser |
| It is a natural substance that is obtained by the decomposition of animal wastes (gobar) and plant residues. | It is a man-made substance. It is an inorganic salt or an organic compound. |
| It adds organic matter in the form of humus to the soil. | It adds minerals to the soil. |
| It is insoluble in water and nutrients exist locked inside the organic compounds of humus. Hence, nutrients present in manure are absorbed slowly by the crop plants | It is soluble in water and hence it's readily absorbed by the crop plants |
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संबंधित प्रश्न
How do plants get nutrients?
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Explain various steps in hybridization of crop plants.
Classify plant diseases depending upon their occurrence and transmission.
Mention three different ways in which insect pests can attack the crop plant.
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Differentiate between the following
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