Question

differentiate between fertilizers and manure 5 mark question

Answer 1

Hey mate here yr answer.

Fertilizers
1 .Fertilizers are man made inorganic substances. ex-urea
2.It replenish the soil fastly
3.It contain NPK (Nitrogen,potash, potassium) which is required for plant growth.
4.It contain very high level of chemicals which can harm soil
5.It can cause water pollution

Manure
1.Manure are natural organic substances made by decomposition of dead and decay animal and also cowdung.
2.Adding manure to crops gives much nutrients to crop.
3.It doesn't harm soil and replenish soil.
4.It take long time to act
5.Ratio of quantity and nutrients is unknown that can damage nutrient present in soil .

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Answer 2

Answer :

MANURES -

1. They are obtained mainly by the decomposition of plant residue and animal wastes.

2. They Contain only a small quantity of mineral salts.

3. Manures are not nutrient - specific; remove general deficiency of soil.

4. They are voluminous and bulky, hence difficult to store and transport.

5. They are not easily soluble in water, hence not easily absorbed by plant and roots.

6. They add organic matter (humus) to the soil.

7. Difficult to transport to long distance.

8. They cannot be stored for long.

9. They improves soil texture

10. Soil pH remains unchanged.

11. Their nutrients are available to the soil and plants slowly.

FERTILISERS -

1. They are manufactured in industries.

2. They contain pure mineral salts a
or their precursors.

3. These are nutrient - specific and provide specific nutrient to the soil.

4. They are compact and concentrated, hence easy to store and transport.

5. They are soluble in water, hence quickly absorbed by roots.

6. They lack organic matter or humus.

7. They are easy to transport.

8. They can be stored in bags.

9. They harm soil texture.

10. changes to acidic or basic soil pH.

11. Their nutrients are readily available to plants.

HOPE IT WOULD HELP YOU