Improvement in Food Resources: Class 9 Study Guide
India must grow enough food for a large population. Better methods improve yields without harming the land.
Crops are grouped by season. Kharif crops are sown with the monsoon in June and harvested in October. They include paddy (rice), maize and soybean. Rabi crops are sown in winter in November and harvested in April. They include wheat, gram, peas and mustard.
To raise yields, farmers choose improved varieties, use manure and fertilisers, irrigate fields, protect crops from weeds, insects and diseases and store grain well.
Improving crop yield
| Method | What it does |
|---|---|
| Improved seeds | Higher yield and resistance to disease |
| Manure | Organic matter that improves soil structure |
| Fertilisers | Supply nitrogen, phosphorus and potassium |
| Crop rotation | Grows different crops in turn, so the soil keeps its nutrients |
| Intercropping | Two crops grown together in rows |
| Irrigation | Gives water by canals, wells and drip systems |
Animal husbandry
Cattle farming gives milk and work animals, and good breeds, feed, shelter and vaccination matter. Poultry gives eggs and meat. Fisheries use sea and fresh water, and fish farming (aquaculture) raises fish in ponds. Bee-keeping gives honey and wax, and bees also help pollinate flowers.
For milk, eggs or honey.
And shelter.
Vaccinate.
Of yield and health.
Caring for the land
Too much fertiliser and pesticide can pollute water and harm useful insects. Organic manure, crop rotation and careful water use help keep soil fertile for the future. Storing grain dry and clean prevents losses from pests and mould.
Worked examples and common mistakes
Example: Is wheat a kharif or rabi crop? Rabi. Example: Which crop is sown with the monsoon? Paddy. Common mistakes: mixing up kharif and rabi, thinking that more fertiliser always means more yield, and forgetting that crops need clean water too.
Check your understanding: model answers
1. For example wheat and gram. 2. Growing two crops together in separate rows. 3. It can pollute water and harm the soil and useful insects.
✨ Key Takeaways
- Kharif crops are sown in the monsoon and rabi crops in winter.
- Manure and fertilisers add nutrients.
- Crop rotation and intercropping protect the soil.
- Animal husbandry includes cattle, poultry, fish and bees.
💬 Questions for Discussion & Reflection
- Name two rabi crops.
- What is intercropping?
- Why is too much fertiliser a problem?
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