CBSE Class 8 Science Revision Notes Chapter 1 Crop Production and Management (Free PDF Download)

• Regular production, proper management, and distribution of food are all required to feed a huge population.

• Crop: A crop is formed when plants of the same kind are grown and cultivated on a big scale in one location.

1. Crops in India are divided into two groups based on the seasons: Rabi and Kharif crops.

2. Seeds sown at the proper depths and distances produce an excellent yield. After selecting healthy seeds, a good variety of seeds is sowed. Seed drills are used to sow the seeds.

3. Organic manure and fertilizers must be used to replenish and improve the soil. With the advent of new crop varieties, the use of chemical fertilizers has soared.

• Crop Production Basics Include:

1. Soil Preparation consists of the following steps: Turning and loosening the soil is one of the most important jobs in agriculture. Tilling or plowing is the process of loosening and turning the soil.

2. Sowing: When seeds are sown at the right depths and distances, they provide a healthy yield. After selecting healthy seeds, a good variety of seeds is sowed. Seed drills are used to sow the seeds.

3. Adding Fertilizers and Manure: Organic manure and fertilizers must be used to replenish and improve the soil. With the advent of new crop varieties, the use of chemical fertilizers has skyrocketed.

• Inorganic chemicals containing nutrients such as nitrogen, potassium, and phosphorus are known as fertilizers. They are manufactured in factories. Urea, ammonium sulfate, potash, and other similar substances are examples.

• Microbes decompose plant and animal wastes (cow dung, animal bones, dead leaves, dead insects, and vegetable wastes) to produce manure, a natural product.

• Irrigation is the process of providing water to crops at regular intervals.

• Irrigation Systems: 

1. Moat, Chain Pump, Dheki, Rahat are all traditional irrigation methods.

2. Sprinkler systems and drip irrigation are two modern irrigation methods.

• Weed Control or Protection from Weeds: Weeding is the process of removing undesired and uncultivated plants known as weeds.

• Harvesting is the process of manually or mechanically cutting the mature crop.

• Storage to keep grains safe from pests and bacteria must be stored properly. Foodgrains are usually harvested with more moisture than is required for storage. To keep grains safe from pests like rodents and insects, they are stored in silos and granaries on a large scale. Jute bags or metal bins are used by farmers to store crops.

• Food is also obtained from animals that have been bred for the purpose of providing food. Animal husbandry is the term for this.

Mastering Class 8 Science Chapter 1: Crop Production and Management - Notes, QnA, and Tips for Success

Introduction to Notes of Science Class 8 Chapter 1

Science Class 8 Chapter 1 Notes presents students with a comprehensive outline of crop production and management. The chapter discusses various topics like the preparation of soil and the instruments used in going through the process. The Ch 1 Science Class 8 Notes PDF enlists the other important concepts like fertilisers, manures and the steps involved in sowing in a detailed manner. Class 8 Science Chapter 1 notes tells a great deal about the processes involved in irrigation and the traditional and modern methods employed. Finally, it briefs students on the harvesting and storage methods of various crops in a concise and detailed manner.

What is a Crop?

Crops are plants belonging to the same kind that are grown and cultivated as a staple source of food in extensive cultivable lands.

Types of Crops

Depending on the seasons in India, there are two primary types of crops- Rabi crops and Kharif crops.

(a) Kharif Crops: The Kharif crops are usually sown during the rainy season- from July to October.

Examples of Kharif crops- Maise, Paddy, Cotton, Soybean and Groundnut

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(b) Rabi Crops: The Rabi crops are usually grown during the winter season- from October to March.

Examples of Rabi crops- wheat, pea, linseed, grams, and mustard.

There is another type of crop produced in India, known as Zaid crops.

(c) Zaid Crops: The Zaid crops are usually sown and grown between Rabi crops and Kharif crops, in the summer season between March to June.

Practices of Crop Production

There are seven basic and primary agricultural practices to be followed while growing a crop:

1. Preparation of Soil: The first step is the preparation of soil, where farmers loosen and turn the soil to increase its fertility.

2. Sowing: In the second step i.e. Sowing, farmers plant seeds of a crop in the soil.

3. Addition of Manure and Fertilisers: In the third step, essential nutrients are added to the soil for the development and growth of crops.

4. Irrigation: In the fourth step i.e. irrigation, water is supplied to the crops at timed and regular intervals.

5. Protection from Weeds: In the fifth step, all the unwanted plants are removed from the cultivated field to allow crops to get proper access to space, nutrients and light.

6. Harvesting: In the sixth step, farmers cut mature crops from the fields. 

7. Storage: In the final step, the grains are kept safe from insects, moisture, rats and other microorganisms.

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Quality of the Seeds

The quality of crop seed is an essential factor that determines the yield of the crop. The selection of good crop seeds is a process done by putting the crops seeds in water. The dead and damaged crop seeds become hollow and float on the surface of the water, whereas the excellent crop seeds sink at the bottom of the water.

Key Features of CBSE Class 8 Science Revision Notes for Chapter 1 Crop Production and Management

Read the given-below key features of Class 8 Science Chapter 1 revision notes on Vedantu to know why you should refer to them for your revision.

• Students can utilize the revision notes for Class 8 Science Chapter 1 to quickly comprehend topics of the chapter they might find difficult.

• Prepared in a simple language with an engaging format including bulleted lists, our revision notes are your go-to resources when in need of last-minute revision or brushing up on concepts.

• You can refer to these notes for free as these are prepared by only Science subject experts. So, the revision notes are factually accurate and error-free.

• The revision notes are prepared according to the latest CBSE syllabus and updated guidelines only.

• Better retention of the important topics in the exam can be ensured by going through these revision notes thoroughly in the crucial hours just before your exam.

• You can totally depend on these Science revision notes as they cover all the topics and subtopics of the chapter, in a detailed format.

Conclusion

Download the free PDF of CBSE Class 8 Science Revision Notes for Chapter 1 Crop Production and Management to refer to whenever you need a quick recap of the important concepts covered in the chapter. These will help you excel in the exams as you will be able to answer the questions confidently.