Class 9 Exam > Class 9 Notes > Science Class 9 > Important Point Notes: Improvement in Food Resources
Improvement in Food Resources Class 9 Notes Science Chapter 12
| Table of contents |
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| Food and Nutrition |
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| Need for Increased Production |
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| Sustainable Practices |
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| Crop Improvement and Management |
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| Animal Husbandry |
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| Key Takeaways |
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| Focus on Sustainability |
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Food and Nutrition
- Essential Nutrients: Food supplies proteins, carbs, fats, vitamins, and minerals for growth and health.
- Sources: Derived from plants and animals through agriculture and animal husbandry.
Need for Increased Production
- Population Growth: India's population over a billion and growing, necessitating higher food production.
- Land Limitation: Limited scope for expanding cultivable land; focus on enhancing production efficiency.
Sustainable Practices
- Environmental Concerns: Intensive use of natural resources; need for environmentally friendly methods in agriculture and animal husbandry.
- Food Security: Not just availability but also accessibility; importance of increasing the income of agricultural workers.
Crop Improvement and Management
- Crop Variety Improvement: Breeding for high yield, disease resistance, and better quality.
- Hybridization and GMOs: Cross-breeding and genetic modification for improved crops.
- Nutrient Management: Use of manure and fertilizers for soil enrichment.
- Irrigation: Diverse methods like wells, canals, river lift systems, and tanks; importance in crop yield.
- Cropping Patterns: Mixed cropping, inter-cropping, crop rotation to maximize use of resources.
- Crop Protection: Managing weeds, pests, and diseases through pesticides and other practices.
Animal Husbandry
- Cattle Farming: For milk and draught labour; focus on breed improvement and proper care.
- Poultry Farming: Egg and meat production; cross-breeding for improved varieties.
- Fish Production: Capture and culture fishing in marine and freshwater; composite fish culture for higher yield.
- Bee-Keeping: For honey and wax; use of local and Italian bee varieties; importance of pasturage.
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Key Takeaways
- Macro vs. Micro-Nutrients: Essential for crop growth, supplied via soil, air, and water.
- Organic Farming: Emphasizes minimal chemical use and maximum organic inputs.
- Animal Care: Essential in farming for health and productivity.
- Technology in Farming: Echo-sounders and satellites in marine fishing; hormonal stimulation in fish breeding.
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Focus on Sustainability
- Balancing high food production with environmental conservation and sustainable practices is crucial.
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