Biology Class 8: Crop Production & Management Quiz

Questions and Answers

What is one benefit of modern agricultural methods mentioned in the text?

Increased efficiency and yield in crop production

In the context of crop production and management, why is it important to understand the selection and sowing of seeds?

To ensure proper growth and development of crops

What is a key aspect of storage as related to crop production and management?

Using appropriate storage facilities to maintain crop quality

Why is it important for farmers to immerse seeds in water before sowing them?

To check if the seeds are hollow or intact Signup and view all the answers

Which traditional tool used for sowing seeds has been replaced by modern machinery like tractors with cultivators?

Funnel Signup and view all the answers

What is a key step in the process of storing grains to protect them from pests and moisture?

Drying harvested grains to reduce moisture content Signup and view all the answers

Why do farmers add dried neem leaves when storing grains?

To repel insects and pests Signup and view all the answers

Study Notes

Biology: Crop Production and Management for Class 8

Cultivating crops to provide food for a growing population is a crucial aspect of agriculture, encompassing various techniques to ensure optimal yields and successful harvests. In this educational piece, we'll delve into the subtopics of Selection and Sowing of Seeds as well as Storage.

Selection and Sowing of Seeds

Selecting good seeds is vital to obtaining high crop yields. To distinguish between healthy and damaged seeds, farmers often immerse them in water:

High-quality seeds will sink in water and remain intact, while damaged seeds will become hollow and float on the surface.
Traditional tools like funnels were used to sow seeds, but modern machinery like tractors with cultivators are used to loosen the soil more quickly and efficiently.

Storage

After harvesting, it's essential to store grains properly to protect them from pests, insects, and moisture. The process involves:

Drying harvested grains to reduce moisture content, which prevents microorganism growth and pest infestation.
Placing grains in airtight containers, such as metallic bins or jute bags.
Adding dried neem leaves to protect grains from damage.

Key Takeaways

To summarize:

Selecting high-quality seeds is crucial for yielding healthy crops.
Proper storage helps keep grains safe from pests and moisture, which extends their shelf life.
Modern agricultural methods increase efficiency and yield while maintaining traditional farming practices.

This knowledge will help you better understand the processes of crop production and management as outlined in your CBSE Class 8 Science syllabus.

References: BYJU'S - CBSE Notes: Crop Production and Management - Class 8 Science (https://byjus.com/cbse-notes/cbse-class-8-science-notes-chapter-1-crop-production-and-management/) BYJU'S - Crop Production and Management: An Overview (https://byjus.com/biology/crop-production-and-management/) Leverage Edu - Class 8 Crop Production and Management (https://leverageedu.com/blog/class-8-crop-production-and-management/) Career Launcher - CBSE 8, Science, CBSE- Crop Production and Management, Notes (https://www.careerlauncher.com/cbse-ncert/class-8/Science/CBSE-CropProductionandManagement-Notes.html)