Crop Production And Management - Class 8 Biology - Extra Questions

List the steps involved in soil preparation.



Pick the odd one out.
Hand fork, Harrow, Sickle, Hoe



The crops which are grown in the rainy season are called ______ crops.



Name the practice followed for large scale rearing of farm animals.



Name one weedicide and the precaution farmers must take during its application.



List the practices which are not environment friendly and why?



What is the advantage of modern agriculture implements over traditional ones?



Nitrogen-fixing bacteria live in the root nodules of ________ plants.



Raj Thakur and Ram Das were given fertilizers and manure both to use in their field. Ram Das selected to use manure. Why did he not select fertilizers?



What is sowing?



What is tilling?



Write down differences between fertilizers and manure?



What are rabi crop?



How do the weeds affect the crops?



Name the practice used for cultivating rice?



Write a short note on the following :

Preparation of soil



Write a short note on the following :

Sowing



Write a short note on Threshing. 



Discuss various methods for weed control.



What is the definition of irrigation?



Fill in the blanks with the correct word from the following list.
(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 __________ from the soil are essential.



Explain rahat and moat/pulley system.



Why is manure and fertilizer used in fields?



Give two examples of each:

(a) Kharif crop
(b) Rabi crop



I am a plant. I grow in crop fields. Farmers pluck me. I do not know the reason. Can you tell who am I?



Arrange the following steps of preparation of soil in correct order.
a) Sowing         b) Levelling           c) Ploughing



What are weed?



Classify the following items based on the storage methods. 
(Apple, Wheat,  Potato, Rice, Grape, Sorghum)
Dry storageCold storage
1
2
3



Define trowel.



Why is it necessary to reduce the moisture in freshly harvested grains before storing them for a long period?




How is the tilling of the soil useful for the crops growing in it ?



What is tilling? Name the machine used for tilling.



Fill in the blanks :
Animal food is rich in ___________.



Enlist the steps involved in the crop production and mention atleast one tool required in each step.



What are the advantages of using manure?



By spraying weedicides, weeds are killed, but not the crop plants why?



Give different steps of agricultural practices in sequence.



Arjun's father was growing a crop continuously in the same field for many years. He noticed that the crops were getting infested by insects. This reduced the yield. Arjun suggested growing soybeans in five rows and maize in another five rows and following the same pattern throughout his one-acre area of land. Arjun's father agreed to do so, in hope of better yield. 

  • What is the given suggestion called?
  • On what basis crops are to be selected in such a practice? 
  • What are the values noticed in Arjun? 



What are the advantages of ploughing?



Define 2, 4-D.



Why during ploughing, the land is pressed lightly and not tightly ?



How do weeds damage crops ?



Which are different festivals related to farming celebrated in different seasons? Find out more about anyone of such festivals and write in your notebook. The name of the festivals in which season it is celebrated, in which states of India, what special food are made, is it celebrated only at home with the family, or together with many people.



In your house what is done to protect grains and pulses form insects?



Why should grains be dried before storage?



What causes storage grain losses?



Which one out of beetles, roundworm and earthworm are used for vermicomposting and why? 



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 



Paddy is a major cereal crop in our country.
What measures must be taken to prevent spoilage and insect attack of harvested grains. 



Unscramble the word related to crop production and its management and write in the boxes given beneath them. 
Now, using the circled letters, form one word which is an activity carried out in fields, after maturation of crops. 

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Paddy is a major cereal crop in our country.
Discuss the method of sowing. 



Unscramble the word related to crop production and its management and write in the boxes given beneath them. 

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Unscramble the words related to crop production and its management and write in the boxes given beneath them. 
Now, using the circled letters, form one word which is an activity carried out in fields, after maturation of crops. 

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(a) Name the tool used with a tractor for sowing seeds in a field.
(b) What are the advantages of using this tool? 



Terms related to the agricultural practice are given below. Rearrange them in the correct sequence.
Harvesting, sowing, manuring, tilling or ploughing, irrigation



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



Unscramble the words related to crop production and its management and write in the boxes given beneath them.

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Give reasons.
Soil is turned over during tilling.



Paddy, maize, soybean and groundnut are ______ crops.



Beera, wants to practice crop rotation in his field. Suggest a Rabi crop and a Kharif crop which will replenish his field with nitrogen. Which crop replenishes nitrogen and why?



What are weeds? How can we control them?



Write a note on modern method of irrigation.



Explain the chain pump system.



Write a note on dhekli system of irrigation.



What are Kharif crops ? Give the name of the most important cereal plant of such crops. Briefly describe any three methods for cultivation of Kharif crops.



Write a paragraph in your own words on each of the following.
(a) Preparation of soil
(b) Sowing
(c) Weeding
(d) Threshing



Define the following term :
Winnowing  



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



Class 8 Biology Extra Questions