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Crop Production and Management Science - Crop Production and Management

Gujarat Board (GSEB) - STD 8 - Science (GSEB - English Medium). 394 questions in this chapter.

Question types

Crop Production and Management question types

394 questions across 12 question groups — pick any mix to generate a Science paper with step-by-step answer keys.

394
Questions
12
Question groups
5
Question types
Sample Questions

Crop Production and Management questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q. [I MARKS]1 Mark
Which of the following statement is or are incorrect about weeding?
  • A
    Weeding is best done during tilling itself.
  • B
    Weeding is the process of removal of weeds.
  • ✓
    Weeding is the process of growing weeds.
  • D
    Weeding is usually done manually or by using weedicides.

Answer: C.

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Q 2M.C.Q. [I MARKS]1 Mark
'Farmers adopt many ways to remove weeds and control their growth'. Choose the incorrect one.
  • A
    Tilling before sowing of crops help the killing of weeds.
  • B
    Removal of weeds is done before they produce flowers and seeds.
  • C
    Weeds are also controlled by using certain chemicals.
  • ✓
    Weedicides are sprayed during the vegetative growth of weeds after flowering and seed formation.

Answer: D.

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Q 13as requested in detail. [5 marks ]5 Marks
As a part of eco-club activity students were asked to raise a kitchen garden in the school premises. They were provided with some materials given in the box. List the other materials you would require. How will you plan the garden? Write the steps.
khurpi, water$-$can, spade, shovel.
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Q 18Fill in the blanks: [1 M]1 Mark
Select the correct word from the following list and fill in the blanksfloat, water, crop, nutrients, preparation
For growing a crop, sufficient sunlight and $...........$ and $...........$ from the soil are essential.
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Q 21Fill in the blanks: [1 M]1 Mark
Select the correct word from the following list and fill in the blanks.float, water, crop, nutrients, preparation
The same kind of plants grown and cultivated on a large scale at a place is called $...........$
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Q 40questions in short. [3 marks ]3 Marks
Complete the following word puzzle with the help of clues given below.
Down
$1)$ Providing water to the crops.
$2)$ Keeping crop grains for a long time under proper conditions.
$5)$ Certain plants of the same kind grown on a large scale.
Across
$3)$ A machine used for cutting the matured crop.
$4)$ A rabi crop that is also one of the pulses.
$6)$ A process of separating the grain from chaff.
Image
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Q 46questions in details [4 marks ]4 Marks
Match items in column A with those in column B
  A   B
$1$ Kharif crops $a$ Food for cattle
$2$ Rabi crops $b$ Urea and super phosphate
$3$ Chemical fertilisers $c$ Animal excreta, cow dung
urine and plant waste
$4$ Organic manure $d$ Wheat, gram, pea
    $e$ Paddy and maize
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Q 51questions in on sentence. [1 M]1 Mark
Select the correct word from the following list and fill in the blanks. float, water, crop, nutrients, preparation For growing a crop, sufficient sunlight and ___________ and __________ from the soil are essential.
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Q 53case /data -based (4 Marks)4 Marks
Nisha performs an experiment with two potted plants. She keeps the pots in sunlight and waters
them equally. She adds manure to the soil in Pot $1.$
Image
She creates a table to record her observations.
  Manure added Height of the plant at the start of the experiment Height of the plant after $4$ weeks
Plant $1$ Yes $..........$ $..........$
Plant $2$ no $..........$ $..........$
$10.$ What is Nisha investigating?
  • A
    Does manure make soil porous?
  • ✓
    Does manure help plants grow better?
  • C
    Do plants need sunlight and water to grow?
  • D
     Is manure better than chemical fertilisers for plant growth?

Answer: B.

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Q 54case /data -based (4 Marks)4 Marks
Soham investigates the water holding capacity of four different types of soils.
He sets up an experiment for each type of soil as shown in the diagram.
Soham records his observation in a table.
Image
  Soil type
Clay Loam Sand Silt
Amount of water added to the soil (ml) $150$ $150$ $150$ $150$
Amount of water collected in the measuring cylinder (ml) $30$ $60$ $105$ $50$
$8.$ Which type of soil absorbs the most water?
$A.$ Clay
$B.$ Loam
$C.$ Sand
$D.$ Silt
$9.$ Soham added the same amount of water to each type of soil.
State one more thing that Soham needs to keep the same in his experiment.
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Q 55case /data -based (4 Marks)4 Marks
A farmer wants to grow crops in his ield between the months of June and July.
The chart below shows a list of crops and different agricultural practices.
Image
$5.$ Select two crops from the list that grow best during June and July
$6.$ The farmer prepared the soil in his ield by turning and loosening the soil.
How does turning and loosening the soil help in growing plants?
$7.$ Farmers follow a sequence of agricultural practices to grow crops. A part of the sequence is shown below.
Choose an appropriate agricultural practice from the chart above to ill in the box.
Image
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Q 56case /data -based (4 Marks)4 Marks
Weedicides are chemicals that are sprayed on crop ields to remove weeds.
A farmer wanted to test the effect of two different weedicides on wheat production.
He sprayed each weedicide on two different ields. No weedicide was sprayed on ield $3.$Image

The graph shows the production of wheat crop from each ield over two years.
Image
$1.$ Why did the farmer not spray any weedicide on Field $3?$
$2.$ What can the farmer conclude from his tests$?$
$A.$ Weedicides $1$ and $2$ were not effective in controlling weeds.
$B$. Wheat production was better in ields sprayed with weedicide.
$C.$ Crop production decreased in Field $3$ as the soil was not fertile.
$D.$ Weedicide $1$ was more effective than Weedicide $2$ in controlling weeds.
$3.$The farmer’s friend suggested that the farmer should have tested Weedicide $1$ on wheat ield and Weedicide $2$ on mustard ield. Will this suggestion help improve the experiment? Explain your answer.
$4.$ Why are weedicides generally sprayed on weeds before they start producing lowers and seeds$?$
$A.$ Weedicides can kill only young weeds.
$B$. Weedicides can kill the crops if not sprayed early on.
$C.$ The weeds cannot be killed after they start producing lowers and seeds.
$D.$ The lowers produce more seeds and the seeds germinate to form more weeds.
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