Questions and Answers
What are kharif crops?
Rabi crops are cultivated in the summer months.
False
What is the primary purpose of eating food?
To gain energy for daily activities
Large pieces of soil are referred to as _______.
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Which of the following is NOT a step in agricultural practices?
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Match the types of crops with their corresponding seasons:
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Earthworms contribute positively to soil health.
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What happens to damaged seeds when they are placed in water?
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Which of the following is NOT an advantage of manure over fertilizers?
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Weedicides are used to promote the growth of weeds in a garden.
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What is the primary purpose of irrigation?
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The process of separating seeds from waste is called __________.
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Match the following irrigation methods with their types:
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Study Notes
Importance of Food
- Food provides energy essential for daily activities.
Definition of Crop
- A crop consists of plants of the same species cultivated extensively in one location.
Types of Crops
-
Kharif Crops:
- Sown during the rainy season (June to September).
- Examples include paddy, maize, soybean, groundnut, and cotton.
-
Rabi Crops:
- Grown in the winter season (October to March).
- Examples include wheat, gram, pea, mustard, and linseed.
Steps of Agricultural Practices
- Preparation of soil
- Sowing
- Adding manure and fertilizers
- Irrigation
- Weeding (protecting from weeds)
- Harvesting
- Storage
Role of Earthworms
- Earthworms are considered beneficial for farmers as they aerate the soil and enhance its humus content.
Tilling and Ploughing
- Tilling (or ploughing) refers to loosening and turning the soil to prepare it for planting.
Soil Crumbs
- Large clumps of soil formed through the soil structure are known as soil crumbs.
Seed Buoyancy
- Damaged seeds float on water due to their reduced weight.
Sowing Process
- Sowing involves preparing the soil and introducing seeds for crop growth.
Manure and Fertilizers
- Both are substances added to soil to provide essential nutrients for crop growth.
Differences Between Fertilizer and Manure
- Fertilizers are chemically formulated, while manure is organic matter derived from animal waste.
Advantages of Manure
- Enhances water retention in soil.
- Improves soil porosity for gas exchange.
- Increases beneficial microbial activity.
- Improves soil texture.
Irrigation
- The process of supplying water to the crops is termed irrigation.
Sources of Irrigation
-
Traditional Methods:
- Moat system, Chain pump system, Dhekli system, Rahat system.
-
Modern Methods:
- Sprinkler system and Drip system.
Weeds
- Weeds are unwanted plants that compete with crops for resources.
Weedicides
- Chemicals used to eliminate weeds and protect crops.
Harvesting
- The act of cutting crops when they are mature and ready for collection.
Threshing
- The process of separating seeds from the residual plant material (waste).
Storage
- A designated area where harvested crops are kept after collection.
Winnowing
- A method or machine used to separate seeds from chaff or waste.
Animal Husbandry
- A practice involving the care and management of animals for products like milk and eggs, ensuring their well-being.
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Description
Test your knowledge on crop production and management concepts in this class 8 quiz. Explore the various techniques and practices involved in cultivating crops effectively. This quiz will cover key topics to help you understand the fundamentals of agriculture.
