Write a paragraph in your own words on each of the following - Preparation of soil

3

(a)

Explain how soil gets affected by the continuous plantation of crops in a field.

3

(a)

What are weeds? How can we control them?

3

(a)

The levelling of ploughed field is beneficial. Give reasons to support your answer.

3

(a)

State two advantages of using chemical fertilisers over manures. What would happen if fertilisers are used in excess?

3

(a)

Unwanted plants (weeds) grow with the crops. How?

3

(a)

Mention the tools commonly used in a field or garden and which purpose do they solve?

3

(a)

Despite favourable climatic conditions, a farmer's crop failed to give good yield. Give the possible reasons for this.

3

(a)

Explain how fertilisers are different from manures.

3

(a)

Differentiate between Fertilizer and Manure.

3

(a)

List all the activities practised during cultivation of crops.

3

(a)

What are the advantages of manure?

3

(a)

What are the disadvantages of fertilizers?

3

(a)

What is the role of water in the production of crops?

3

(a)

What is the importance of using manure and fertilizers as an agricultural practice?

3

(a)