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NCERT Solutions for Class 8 Science Chapter 1 Crop Production And Management

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NCERT Class 8 Science Chapter 1: Complete Resource for Crop Production and Management

Science Class 8 Chapter 1 is an interesting chapter that teaches students about the process of crop production and management. This is an important chapter from which many questions come during the final science examination. This is why it is suggested that students should work on NCERT solutions of class 8 science chapter 1.

 

Class:

NCERT Solutions For Class 8

Subject:

Class 8 Science

Chapter Name:

Chapter 1 - Crop Production and Management

Content Type:

Text, Videos, Images and PDF Format

Academic Year:

2024-25

Medium:

English and Hindi

Available Materials:

Chapter Wise

Other Materials

  • Important Questions

  • Revision Notes


But what if you are having issues in writing NCERT Solutions for Class 8 Science chapter 1? In that case, the student should not worry. Instead, you should get the academic help of experts at Vedantu. We at Vedantu provide students with class 8 science ch 1 NCERT solutions pdf for free! 

 

This PDF file can help you score better marks than ever. Download Vedantu CBSE NCERT Solutions to get a better understanding of all the exercises questions. You can also download Class 8 Maths NCERT Solutions to help you to revise the complete syllabus and score more marks in your examinations.

Access Class 8 Science Chapter 1 Crop Production and Management PDF

NCERT Class 8 Science Chapter 1, Crop Production and Management deals with the fundamentals of crop production and its management. The chapter categorizes the term crop ad defines them with certain examples. On the basis of seasons in which the crops are grown, they are classified as - 

  • Kharif crops (monsoon crops or autumn crops)

  • Rabi crops (winter crops)


These are explained with a number of examples. The major part of the chapter orbits the best practices of crop production. Here, all the important agricultural practices are described in a comprehensive way. 


Above all, the agricultural practices covered in the chapter, Crop Production and Management  are listed below: 


Preparation of soil: In this section, the process of tilling and ploughing is well-explained with various agricultural implements used.


Sowing: Here, the practice of selection of seeds is discussed.


Adding manures and fertilizers: In this part, certain examples of manures and fertilizers are given along with their significance in crop production. Besides this, differences between manures and fertilizers are also clearly explained.


Irrigation: Various sources of irrigation along with traditional and modern methods of irrigation are covered in this chapter.


Protection from weeds: This chapter deals with the protection of crops and includes the terms weed, weeding, and weedicides.


Harvesting: You will understand harvesting, threshing, and winnowing under this chapter.


Storage: Silos and granaries form part of the discussion under this section.


Lastly, this chapter provides you with short information on animals as sources of food along with Crop Production, and Management.


The chapter, Crop Production and Management covers the topics underlined:

  • Agricultural Practices

  • Basic Practices of Crop Production

  • Preparation of Soil

  • Sowing

  • Adding Manure and Fertilisers

  • Irrigation

  • Protection from Weeds

  • Harvesting

  • Storage

  • Food from Animals


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 _________. 

Ans: Crop


(b) The first step before growing crops is ________ of the soil.

Ans: Preparation


(c) Damaged seeds would _________ on top of water.

Ans: Float


(d) For growing a crop, sufficient sunlight, _________ and _________ from the soil are essential. 

Ans: Water and nutrients.


2. Match items in column A with those in column B.

A

B

  1. Kharif crops

  2. Rabi crops

  3. Chemical fertilizers

  4. Organic manure

  1. Food for cattle

  2. Urea and superphosphate

  3. Animal excreta, cow dung, urine and plant waste

  4. Wheat, gram, pea

  5. Paddy and maize.


Ans:

The table showing the matched answers is as below,

A

B

  1. Kharif crops

  2. Rabi crops 

  3. Chemical fertilizers

  4. Organic manure

e) Paddy and maize

d) Wheat, gram, pea

b) Urea and super phosphate

c) Animal excreta, cow dung, urine and plant waste


3. Give two examples of each.

  1. Kharif crop

  2. Rabi crop

Ans: Examples:

  1. Kharif crops - maize and millets.

  2. Rabi crops - wheat and oats.


4. Write a paragraph in your own words on each of the following.

  1. Preparation of soil

  2. Sowing 

  3. Weeding

  4. Threshing

Ans: 

a. Preparation of soil: 

i. The first method in crop management is soil preparation.  This process is done by loosening the soil with the help of a plough which helps in ploughing or tilling it. 

ii. Loosening of soil particles adds humus and nutrients and increases the absorption of water and manure in the soil which increases crop yields.


b. Sowing:

i. After the soil preparation, the best seeds are chosen to sow in the soil for production.

ii. Seeds are sown with the help of a seed drill which is in the funnel shape used in modern-day tractors to sow the seeds at a particular depth in the soil.

 

c. Weeding:

i. Unwanted plants which grow and interfere along with the other plants to reduce their yield are called weeds. Unwanted plants are removed by the process called weeding  

ii. We have to remove weeds as they compete with the plants in light and space and take up the nutrients given to the plant from the soil. Xanthium, Parthenium, etc. are some common weeds that affect the growth of plants. 

iv. Weedicides are used to control the weeds which is a chemical that only kills the weeds, not the crops. 


d. Threshing: 

i. After the crop harvesting, the last step in which the grains are separated from the chaff is called threshing.

ii. “Combine” is a machine that carries out this threshing process. The combine is the combination of harvester and thresher which harvests crops and also separates the grains.


5. Explain how fertilisers are different from manure.

Ans: The table showing the difference between fertilizers and manure is as below,

Sl.No

Properties

Fertiliser

Manure

1

Availability

Fertilisers are commercially available plant nutrients.

They are natural substances prepared by the decomposition of animal excreta and plant wastes.

2

Types

They tend to be either inorganic or organic in nature.

They can be organic with large quantities and little amounts of plant nutrients.

3

Use

They provide nitrogen, phosphorus, potassium for the healthy growth of plants.

They contribute to the organic matter and nutritional enrichment of the soil.

4

Guidelines

The addition of fertilisers to the soil requires special guidelines such as dose time and post addition precautions.

The application of manure does not necessitate any particular instructions.

5

Humus

A fertiliser seems to provide/add no humus to the soil.

Manure enriches the soil with humus and improves its fertility.

6

Causes

Its excessive use causes water pollution. It is unable to restore the soil's organic materials.

It helps to safeguard the environment and recycle farm waste.

6. What is irrigation? Describe two methods of irrigation that conserve water. 

Ans: Irrigation:

  • Supplying water to the crops in the field at various intervals for the growth of the plants is called irrigation.

  • Intervals differ from crop to crop, season to season, and are also affected by the type of soil and rainfall.

  • The irrigation sources may include ponds, lakes, canals rivers, and dams. 


Two methods of which conserve water are drip irrigation and sprinkler irrigation:

  • Drip irrigation: It has an arrangement of pipes or tubes with small holes from which plants are watered drop by drop at the base of the root, so that water cannot be wasted.

  • Sprinkler irrigation: It has an arrangement of vertical pipes with rotating nozzles on the top for the distribution of water to uneven or sandy lands without wastage of water.


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

Ans: 

  1. Kharif season is from June to October. If wheat is planted during this season, it is possible that the entire crop will be damaged due to a variety of issues including a lack of optimal temperature, adaptability, and insect availability.

  2. The rainy season is included in the Kharif season, which is not conducive to wheat crop growth, as wheat grows well in the winter or rabi season. As a result, the wheat crop must not be planted during the Kharif season, but rather during the Rabi season.


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

Ans: 

  1. Soil minerals such as potassium, nitrogen, phosphorus, as well as other nutrients are depleted as a result of persistent soil plantation. It takes up all the plant nutrients which take a long time to replenish. 

  2. These ions are important for all plants to undergo proper growth. If a continuous plantation is done these minerals won’t get time to replenish and the crop yield decreases immediately.


9. What are weeds? How can we control them?

Ans: Weeds:

  1. Undesirable or unwanted plants that grow along with crop plants that reduce crop productivity are known as weeds. Xanthium, Parthenium, etc. are some common weeds.  

  2. Weeds compete for light, nutrients, and space with the crop. As a consequence, crop plants receive less light, nutrients, and space to grow. We have to remove weeds as they compete with the plants in light and space and take up the nutrients given to the plant from the soil. 

  3. This, in turn, reduces their productivity. Thus, various weeding methods are employed. 


    Some important weeding methods to control the growth of weeds are:

  1. Weeds can be controlled using weedicides. It is a chemical, which is sprayed in the fields to kill all available weeds.  Weedicides are not harmful to crops. 

  2. Weeds are also removed by tilling before sowing crops. Weeds are uprooted by tilling. The optimum time to get rid of weeds would be before they blossom and release seeds. 


10. Arrange the following boxes in proper order to make a flow chart of sugarcane crop production.


Sugarcane Crop Production


Ans: Sugarcane production involves several processes such as growing the crops by preparing the soil first by ploughing it, then sowing the seeds and using manures. Then water is supplied by the irrigation method. After the crop production, harvesting is done, then the crops can be sent to a factory.


Sugarcane Crop Production


11. 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 grow 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 the chaff.


Word Puzzle


Ans:

1. Providing water to the crops - IRRIGATION

2. Keeping crop grains for a long time under proper conditions - STORAGE

5. Certain plants of the same kind grow on a large scale - CROP

Across 

3. A machine used for cutting the matured crop - HARVESTER

4. A rabi crop that is also one of the pulses - GRAM

6. A process of separating the grain from chaff - WINNOWING


Word Puzzle


Important Questions of NCERT Science Class 8 Chapter 1 Crop Production and Management

Let’s start with the basics. All the topics are described in the easy question-answer format so that students’ basics get cleared easily and they understand each term deeply. 

 

1. What is a crop? What are its types?

A crop can be defined as plants of the same type that are grown and cultivated as a source of food. This is done in a large cultivable land. There are also different types of crops. These different types of crops are:


  • Rabi Crops: These crops are grown during the winter season, which is from October to March.

  • Kharif Crops: These crops are sown during the rainy season, which is from July to October.


2. What are the process and tools required for preparing the soil?

Before any seed can be sown, the soil is prepared for the crop. This is done so that seeds can be properly sewn inside the land. There are several processes and tools that are used for preparing the soil. We have discussed those methods and tools in a list that is mentioned below.


Ploughing or Tilling

Ploughing or tilling is the process through which the soil is loosened and turned. This is done with the help of a plough.


Plough

As mentioned above, a plough is a device that is mainly used by farmers for various purposes like loosening the soil and adding fertilizers to the soil. A plough can also be used to remove weeds and scraping of soil. Usually, a plough shaft is the main part of a plough, which is made from a log of wood.


A ploughshare is another part of a plough and it can be explained as a triangular iron strip. The other end of the shaft has a handle. The other end is attached to a beam. This beam is pulled by the bull after it is placed on the neck of the bull. A wooden plough can also be operated by a man. These days many farmers are also switching to iron ploughs.


Hoe

A hoe is a tool that can be used for digging up the soil. This tool can also be used to remove weeds and loosen up the soil before planting a sapling into the soil.


Cultivator

A cultivator is a tool that is attached to a tractor. It helps in loosening the soil. There are many farmers who prefer to use cultivators instead of ploughs as cultivators are faster.


3. What is sowing? How to sow a seed?

Soil preparation is necessary before sowing seeds. Sowing is the process of planting seeds in the soil.


Steps to sow seed:


  1. Firstly The quality of the seed is crucial for determining crop yield. Selecting good seeds involves placing them in water to check for dead or damaged seeds.

  2. Dead and damaged seeds will float on water, while good seeds will sink.

  3. Traditional tools such as scythes, shovels, ploughs, and pickaxes were used before modern agricultural practices.

  4. Traditional sowing tools resembled funnels with two or three tubes for placing seeds in the soil.

  5. Seed drills are now used with tractors for uniform and efficient sowing.

  6. Seed drills ensure that seeds are sown at a specific depth and covered with soil.

  7. Nurseries are places where young trees and plants are grown for later transplantation.

  8. Nurseries are considered repositories of saplings by experts.

  9. After sowing, seeds undergo germination and the plant starts to emerge.

  10. Adding manure or fertilizers is the next task for the farmer after seed germination.


4. What are manure and fertilizers?


Aspect

Manure

Fertilizers

Origin

Obtained naturally from the decomposition of organic matter like plant residues, animal waste, and compost.

Manufactured in factories using chemical processes or mined from natural deposits.

Composition

Contains various nutrients like nitrogen, phosphorus, and potassium, but in lower concentrations compared to fertilizers. Additionally, manure is rich in organic matter, which improves soil structure, water holding capacity, and beneficial microbial activity.

Contain high concentrations of specific nutrients, often nitrogen, phosphorus, and potassium (NPK). They lack the organic matter content of manure.

Effects

Releases nutrients gradually over time, making it a more sustainable option. It also helps in maintaining soil health in the long term.

Provide a quick boost of nutrients to plants, leading to increased crop yield in the short term. However, excessive or improper use of fertilizers can harm soil health, pollute water bodies, and disrupt the natural ecosystem.


The choice between manure and fertilisers requires considering these differences. Excessive use of fertilisers can result in pollution and pH changes in the soil. Some farmers choose to leave their land fallow to naturally replenish lost nutrients and minerals. After a period of time, the land can be used again.


5. What is crop rotation?

In crop rotation, the same crop is not grown continuously. This prevents the erosion of the fertility of the soil. Also, another major part of growing crops is protecting the crops from weeds.


6. What are weeds? What is tilling?

Weeds can be defined as undesirable plants that grow naturally along with the main crop. The weeds are harmful because they compete with the crop by absorbing all the nutrients, water, light, and space.


Tilling is a process that can be done after sowing the crops. This process helps in killing and uprooting the weeds. One can also choose to remove weeds by physically uprooting the weeds from the soil or by chopping the weeds to the ground level. This is known as the manual removal method.


Some farmers also use weedicides, which are chemicals that are used for killing weeds. Students should remember that weedicides do not harm the main crop. After that, harvesting is performed.


7. What is harvesting? What are the methods to harvest the crops?

Harvesting can be explained as the process of cutting the crop once it has matured. 

There are two main methods through which harvesting can be done. These methods are:


  • Manual method where a sickle can be used.

  • The mechanical method in which a harvester, which is a huge machine, can be used.


8. What is threshing and winnowing?

Threshing is also the process that can be used for loosening the grains from the chaff. This process can be performed manually or with the help of machines. Winnowing is also a method for separating grain seeds from the chaff. But this method is done with the help of the wind. Because of the wind, the lighter chaff will fly away and the heavier grains will fall down.


9. How the grains are stored?

Once the grain is separated, then the storage of the grains is left. Ideally, the grains should be stored in silos and granaries after harvesting. One should ensure that grains are stored in a dry place that does not have any fungal infestation or rodent infestation. Fumigation of the storage place should also be done to make sure that the storage place is free from microbes.


For students who do not know what granaries mean, it is the place where the freshly obtained food grains are stored. Also, animal husbandry is defined as the management and care of farm animals. This is done to obtain milk, eggs, or meat.


Download NCERT Class 8 Science Chapter 1 Crop Production and Management Solutions From Vedantu

There are a total of ten exercises in chapter 1 of class 8 science NCERT book. Each of these exercises deals with various topics. It is recommended that students should solve all of these exercises if they want to score good marks in their final science examination.

If you are having problems while answering questions, then you should download NCERT solved questions from Vedantu. This pdf file can be downloaded by students from all across the globe without having to pay anything! So, what are you waiting for? Score better marks than ever with the academic help from the experts at Vedantu!


Advantages of Downloading Class 8 Science Chapter 1 Solution From Vedantu

There are many advantages of downloading NCERT solutions Class 8 Science Ch 1 Crop Production and Management from Vedantu. If you want to know about those benefits, then go through the list of benefits for downloading class 8th science chapter 1 solutions that are mentioned below.


  • Students can enroll in online live classes.

  • Students can learn every answer to score better marks in their final science examination.

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  • Answers are written by the most talented and experienced subject matter experts in India.

  • Students can get 24 x 7 academic assistance.


NCERT Solutions for Class 8 Science | Chapterwise PDF


Additional Materials for CBSE Class 8 Science Chapter 1 


Conclusion

Vedantu's NCERT Solutions for Class 8 Science Chapter 1 crop production and management provide a comprehensive and reliable resource for students studying this subject. The solutions are meticulously crafted to align with the concepts and topics covered in the NCERT textbook. They offer clear explanations, step-by-step solutions, and relevant examples, enabling students to grasp the fundamental principles of science effectively. The solutions also encourage critical thinking and problem-solving skills, fostering a deeper understanding of the subject matter. Vedantu's NCERT Solutions for Class 8 Science Ch 1 crop production and management serve as a valuable aid for students, helping them consolidate their knowledge and achieve academic success in science.

FAQs on NCERT Solutions for Class 8 Science Chapter 1 Crop Production And Management

1. What topics are covered in NCERT Solutions for Class 8 Science Chapter 1 - Crop Production and Management?

The NCERT Solutions for Class 8 Science Chapter 1 - Crop Production and Management cover various topics such as types of crops, agricultural practices, crop production cycle, sowing methods, soil preparation, irrigation, fertilisers, pests and diseases, and harvesting techniques.

2. How can NCERT Solutions for Class 8 Science Chapter 1 - Crop Production and Management help me understand the concepts better?

The NCERT Solutions provide detailed explanations, diagrams, and examples that break down the concepts of crop production and management into easily understandable parts. By following the solutions, you can gain a clear understanding of the processes involved in crop production, from soil preparation to harvesting, and comprehend the importance of various agricultural practices.

3. Are the NCERT Solutions for Class 8 Science Chapter 1 - Crop Production and Management easy to follow?

Yes, the NCERT Solutions provided by Vedantu are designed to be student-friendly and easy to follow. The solutions use simple language and step-by-step explanations to ensure that students can grasp the concepts easily. Additionally, the solutions include diagrams and examples to further enhance comprehension.

4. Can the NCERT Solutions for Class 8 Science Chapter 1 - Crop Production and Management help me with exam preparation?

Absolutely! The NCERT Solutions cover all the important topics and questions from the chapter, which are likely to be asked in exams. By going through the solutions, practising the provided questions, and understanding the concepts thoroughly, you can strengthen your exam preparation and perform well in your science examinations.

5. Are the NCERT Solutions for Class 8 Science Chapter 1 - Crop Production and Management available online?

Yes, Vedantu provides the NCERT Solutions for Class 8 Science Chapter 1 - Crop Production and Management online. You can access these solutions on Vedantu's website or through their mobile app. They are readily available for free, allowing you to study and revise the chapter conveniently at any time and from anywhere with an internet connection.

6. What is crop production and management class 8?

Crop production and management in Class 8 is a subject that teaches students about the entire process of growing crops, from planting seeds to harvesting and storing the final product. It covers various aspects, including:


  • Soil preparation: Making the soil loose and fertile for healthy plant growth.

  • Sowing: Planting seeds at the right depth and spacing.

  • Manure and fertilizers: Adding nutrients to the soil for better crop yield.

  • Irrigation: Providing water to the crops regularly.

  • Weed control: Removing unwanted plants that compete with crops for resources.

  • Protection from pests and diseases: Safeguarding crops from harmful insects and illnesses.

  • Harvesting: Gathering the mature crops.

  • Storage: Preserving the harvested crops for later use.


By understanding these practices, students gain valuable knowledge about the importance of agriculture and the efforts involved in ensuring a sustainable food supply.

7. What is crop class 8 very short answer?

Crop refers to plants grown for their edible parts, such as grains, fruits, vegetables, and pulses. Studying crops helps students understand their role in agriculture and appreciate the diverse range of plants that provide us with food.