Watering the crops is called

1

(a)

sowing

(b)

manuring

(c)

tilling

(d)

irrigation

Planting of seeds is called

1

(a)

cultivation

(b)

irrigation

(c)

harvesting

(d)

sowing

Which of the following tools would a farmer use to remove weeds from the field?

1

(a)

Hoe

(b)

Plough

(c)

Axe

(d)

Cultivator

Process of separating grain seeds from the chaff is called:

1

(a)

threshing

(b)

harvesting

(c)

weeding

(d)

sowing

Which of the following is not a traditional method of irrigation?

1

(a)

Moat

(b)

Chain pump

(c)

Drip system

(d)

Rahat

...................is a device to spread seeds in soil

1

(a)

seed drill

A most common weedicide is..........

1

(a)

2,4-D

Millet belongs to the........... crops

1

(a)

kharif

The main part of the plough is a long log of wood, which is called a________.

1

(a)

plough shaft

__________ are the chemical substances that are rich in a particular nutrient.

1

(a)

fertilizers

Write full form of NPK.

1

(a)

Nitrogen, Phosphorus, Potassium.

What will happen if freshly harvested grains are stored without drying?

1

(a)

Grains should be properly dried to reduce the moisture and this prevents the attack by insects, pests, bacteria and fungi.

Where is the sprinkler water system useful?

1

(a)

Sprinkle water system is useful on the uneven land and at the land where water is not available. It is good for sandy soil.

What is a strong triangular iron strip of plough called?

1

(a)

Plough share.

The irrigation system that sprinkles water on the crops as if it is raining?

1

(a)

Sprinkle water system.

The rabi crops are known as winter crops. Give reason.

2

(a)

To overcome what problems, the modern methods of irrigation are used.

2

(a)

Manuring is essential for growth of plants. What is manuring?

2

(a)

Name two weeds that are commonly found in rice and wheat fields.

2

(a)

Why is weeding necessary?

2

(a)

If wheat is sown in the kharif season, what would happen? Discuss.

3

(a)

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

3

(a)

Leguminous plants do not require nitrogenous fertilisers. Why is it so?

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)

A group of students conducted an activity where they took three glasses A, B and C with same amount of soil and planted same sized seedlings. They added cow dung manure in glass A, little urea in glass B and nothing in C. Based on the observations after a week, answer the following:
(a) In which glass, will you find seedling?
(b) Seedlings of which glass shows maximum growth?
(c) Give the inference of the activity.
(d) Name the natural substance obtained from residues of plants.
(e) Mention the role of soil.

5

(a)

Discuss various systems of irrigation.

5

(a)