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Questions and Answers
What is the main purpose of using a seed drill in sowing?
What is the main purpose of using a seed drill in sowing?
Why do farmers add manure to the soil?
Why do farmers add manure to the soil?
What happens to the soil when crops are grown continuously in the same field?
What happens to the soil when crops are grown continuously in the same field?
Why are seeds of some plants like paddy first grown in a nursery?
Why are seeds of some plants like paddy first grown in a nursery?
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What is the role of soil in plant growth?
What is the role of soil in plant growth?
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Why do some plants grow better than others?
Why do some plants grow better than others?
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What is the process of adding manure to the soil called?
What is the process of adding manure to the soil called?
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What is the main purpose of manuring?
What is the main purpose of manuring?
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Why are seeds kept in small bags in a nursery?
Why are seeds kept in small bags in a nursery?
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What is the effect of improper or insufficient manuring on plants?
What is the effect of improper or insufficient manuring on plants?
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Study Notes
Crop Production and Management
- Plant seeds are grown in a nursery before being transplanted to the field.
- Manure is an organic substance obtained from the decomposition of plant or animal wastes.
- Microorganisms cause decomposition, and the decomposed matter is used as organic manure.
- Fertilisers are chemicals rich in a particular nutrient, produced in factories, and are different from manure.
Fertilisers vs Manure
- Fertilisers are man-made inorganic salts, whereas manure is a natural substance.
- Fertilisers are prepared in factories, whereas manure can be prepared in the fields.
- Fertilisers do not provide humus to the soil, whereas manure provides a lot of humus.
- Fertilisers are very rich in plant nutrients like nitrogen, phosphorus, and potassium, whereas manure is relatively less rich.
Advantages of Manure
- Manure is considered better than fertilisers because it provides humus and protects the crop from frost and hot air currents.
- Manure helps maintain the moisture of the soil for healthy crop growth.
Seed Drill and Sowing
- A seed drill is used for sowing seeds with the help of tractors, ensuring uniform sowing at equal distance and depth.
- The seed drill saves time and labour, and protects seeds from being eaten by birds.
- Sowing by using a seed drill ensures seeds get covered by the soil after sowing.
Importance of Soil Nutrients
- Soil supplies mineral nutrients to crop plants, which are essential for growth.
- Continuous cultivation of crops in the same field makes the soil poor in nutrients.
- Farmers have to add manure to the fields to replenish the soil with nutrients, a process called manuring.
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Description
This quiz covers the process of plant growth from seedlings to transplantation, and the role of manure in agriculture.
