Class 8 Science
Crop Production and Management
Q.1
Select the correct word from the following list and fill in the blanks. float, water, crop, nutrients, preparation
(a) The same kind of plants grown and cultivated on a large scale at a place is called _____________.
(b) The first step before growing crops is _____________ of the soil.
(c) Damaged seeds would _____________ on top of water.
(d) For growing a crop, sufficient sunlight and _____________ and _____________ from the soil are essential.
View Answer
Q.2
Match items in column A with those in column B.
A B
(i) Kharif crops (a) Food for cattle
(ii) Rabi crops (b) Urea and super phosphate
(iii) Chemical fertilisers (c) Animal excreta, cow dung urine and plant waste
(iv) Organic manure (d) Wheat, gram, pea
(e) Paddy and maize
View Answer
Q.3
Give two examples of each.
(a) Kharif crop
(b) Rabi crop
View Answer
Q.4
Write a paragraph in your own words on each of the following.
(a) Preparation of soil
(b) Sowing
(c) Weeding
(d) Threshing
View Answer
Q.5
Explain how fertilisers are different from manure.
View Answer
Q.6
What is irrigation? Describe two methods of irrigation which conserve water.
View Answer
Q.7
If wheat is sown in the kharif season, what would happen? Discuss.
View Answer
Q.8
Explain how soil gets affected by the continuous plantation of crops in a field.
View Answer
Q.9
What are weeds? How can we control them?
View Answer