WORKSHEET-CLASS 8
CROP PRODUCTION AND ITS MANAGEMENT
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
2. Match items in column A with those in column B.
4. If wheat is sown in the kharif season, what would happen? Discuss.
Answer
If wheat is sown in the kharif season (from June to October), then the whole crop might get destroyed because of many factors such as lack of optimum temperature, adaptability, availability of pests, etc. Kharif season includes the rainy season, which is not favourable for the growth of wheat crop. Therefore, wheat crop should not be sown during this season.
5. Explain how soil gets affected by the continuous plantation of crops in a field.
Answer
If continuous plantation of crops is done in the fields then the soil will become poor in necessary nutrients like nitrogen, phosphorus, potassium, etc. Plants require nutrients for their proper growth and functioning. When a farmer continues to grow crops one after the other, then all nutrients available in the soil reduce and the crop yield decreases automatically.
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CROP PRODUCTION AND ITS MANAGEMENT
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
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
|
3 . Arrange the following boxes in proper order to make a flow chart of sugarcane crop production. |
(e)
|
Paddy and maize
|
4. If wheat is sown in the kharif season, what would happen? Discuss.
Answer
If wheat is sown in the kharif season (from June to October), then the whole crop might get destroyed because of many factors such as lack of optimum temperature, adaptability, availability of pests, etc. Kharif season includes the rainy season, which is not favourable for the growth of wheat crop. Therefore, wheat crop should not be sown during this season.
5. Explain how soil gets affected by the continuous plantation of crops in a field.
Answer
If continuous plantation of crops is done in the fields then the soil will become poor in necessary nutrients like nitrogen, phosphorus, potassium, etc. Plants require nutrients for their proper growth and functioning. When a farmer continues to grow crops one after the other, then all nutrients available in the soil reduce and the crop yield decreases automatically.
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