Question

ng Answer Questions (Carrying 5 marks each
1. Distinguish between fertilizer and manure. Give
suitable examples. What are advantages and
disadvantages of using fertilizer ?​

Answer 1

Answer:

FARTILIZER -A fartilizer is a human -made substance.

A fartilizer is costly and prepare in factories.

It is an inorganic salt or an organic compounds.

MANURE -A manure is natural.

A manure is decomposition of animals wastes.

It is cheap and prepare in rural homes &fields.

Answer 2

Answer:

MANURE

Explanation:

1)It is obtained by the nature/natural substances formed by the decomposition of plant and animal remains.

2)It Increases plant nutrients and also maintains the fertility of soil for long time.

3)Manure cannot provide specific type of

3)Manure cannot provide specific type ofmicronutrients instead it provides nutrients like nitrogen (N), phosphorus (P) and potassium (K) and humus.

In addition, manure returns organic matter and other nutrients such as calcium, magnesium and sulfur to the soil, building soil fertility and quality.

4)Microbes are needed for the formation of manure. (for the decomposition of plant and animal remains)

5)manure improves water retention of soil, ensures proper and aeration.

6) Manures are absorbed slowly by plants.

7)There are no side effects of manure.

8)They are need to be supplied in large amount as they contain relatively less nutrients.

9)Manure is inconvenient to store.

10)Manure is relatively cheaper than fertilizers and can be prepared in fields.

FERTILIZER

1)Fertilizers are manufactured in factories through chemical procedure.

2)Increases soil fertility in short time but It is harmful for the soil in long run.

3)manure can provide specific nutrients but

cannot provide humus to the soil.

4)Microbes are not needed for the formation of fertilizers

5)After the continuous use of fertilizers, soil loses water retention and proper aeration capacity and thus leads to soil pollution.

6)fertilizer is absorbed very fastly by plants.

7)There are some side effects of fertilizers.

8)fertilizers are need to be supplied in less amount as it contains very high amount of nutrients and may pollute the soil.

9)fertilizer is convenient to store.

10)fertilizer are very costly and cannot be prepared in fields.