Class 9 Science — Chapter 12: Improvement in Food Resources

What you'll learn

• ▸Need for Improvement in Food Resources
• ▸Crop Types and Cropping Seasons
• ▸Strategies for Improving Crop Yields
• ▸Crop Variety Improvement Techniques
• ▸Desirable Traits for Crop Improvement
• ▸Plant Nutrient Management
• ▸Manure and Its Types

Chapter Summary

--- PAGE 1 --- Chapter 12 0964CH15 IMPROVEMENT IN FOOD RESOURCES We know that all living organisms need food. Food supplies proteins, carbohydrates, fats, vitamins and minerals, all of which we require for body development, growth and health. Both plants and animals are major sources of food for us. We obtain most of this food from agriculture and animal husbandry. We read in newspapers that efforts are always being made to improve production from agriculture and animal husbandry. Why is this necessary? Why we cannot make do with the current levels of production? India is a very populous country. Our population is more than one billion people, and it is still growing. As food for this growing population, we will soon need more than a quarter of a billion tonnes of grain every year. This can be done by farming on more land. But India is already intensively cultivated. As a result, we do not have any major scope for increasing the area of land under cultivation. Therefore, it is neces…

Practice Questions from this Chapter

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1. Explain hybridisation simply. Get Solution →
2. Identify sustainable farming methods. Get Solution →
3. Describe genetically modified crops. Get Solution →
4. What primary nutrient do cereals like wheat, rice, and maize provide for energy requirements? Get Solution →
5. Which of the following is listed as a 'rabi' crop, typically grown in the winter season? Get Solution →
6. What is the farming season from June to October, also known as the rainy season, called? Get Solution →
7. According to the text, nutrients required by plants in large quantities are called what? Get Solution →
8. Which two essential nutrients are supplied to plants by the air? Get Solution →

Did you know?

• 💡 Ancient Egyptians were among the first to use irrigation to grow crops.
• 💡 Strawberries are not true berries; botanically, bananas are.
• 💡 A single corn plant can produce over 500 kernels of corn.
• 💡 Hydroponics allows growing plants without soil, just water.
• 💡 The oldest living seed ever sprouted was a date palm seed from 2,000 years ago.

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