Introduction
Food is essential for growth, repair, and energy. This chapter explains how food production can be improved through better agricultural practices, animal husbandry, and modern techniques.
1. Crop Production
Steps in Crop Production
- Preparation of Soil – Ploughing, leveling, and adding fertilizers.
- Sowing – Selecting good quality seeds.
- Adding Manure and Fertilizers – Organic (manure) or chemical fertilizers.
- Irrigation – Supplying water by canals, tube wells, or sprinklers.
- Weeding – Removing unwanted plants (weeds).
- Harvesting – Collecting mature crops.
- Storage – Preventing loss due to pests or spoilage.
2. Agricultural Practices for Improvement
a) High Yield Variety (HYV) Seeds
- Seeds that produce more yield and are resistant to diseases.
- Example: Wheat, rice HYV seeds.
b) Multiple Cropping
- Growing more than one crop in a year on the same land.
- Example: Wheat + Mustard.
c) Crop Rotation
- Growing different crops in a sequence to maintain soil fertility.
d) Use of Fertilizers and Pesticides
- Fertilizers supply nutrients like NPK.
- Pesticides control pests and increase yield.
3. Animal Husbandry
Improving Animal Production
- Selective Breeding: Breeding animals with desired traits.
- Cross-Breeding: Combining traits from two different breeds.
Dairy Farming
- Provides milk, butter, and cheese.
- Using improved breeds increases milk production.
Poultry Farming
- Rearing chickens, ducks, and turkeys for eggs and meat.
4. Fisheries
- Rearing fish in ponds, tanks, or cages.
- Provides protein-rich food.
- Example: Carp, Catla, Rohu.
5. Storage and Preservation
- Cold storage: Lowers microbial activity.
- Canning: Preserves food in airtight containers.
- Drying and Dehydration: Removes water to prevent spoilage.
- Chemical preservatives: Increase shelf-life.
Quick Short Q&A (Most Possible)
| Question | Short Answer |
|---|---|
| HYV seeds? | High yield variety seeds |
| Purpose of manure? | Supply nutrients to soil |
| Crop rotation? | Growing different crops in sequence |
| Example of multiple cropping? | Wheat + Mustard |
| Selective breeding? | Breeding animals with desired traits |
| Cross-breeding? | Combining traits of two breeds |
| Dairy farming produces? | Milk, butter, cheese |
| Poultry farming? | Eggs and meat |
| Fisheries? | Fish farming for food |
| Preservation method? | Canning, cold storage, drying |