Improvement in Food Resources — Flashcards
Karnataka Board · Class 9 · Science
20 flashcards for Improvement in Food Resources (Karnataka Board Class 9 Science) to test yourself on key terms and facts.
Interactive on Super Tutor
Studying Improvement in Food Resources? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for flashcards and more.
Free trial, no card needed.
A farmer notices his wheat crop is turning yellow and growth is stunted. The soil test shows nitrogen deficiency. What should he do to improve the crop yield?
Answer
Apply nitrogen-rich fertilizers like urea or organic manure. Nitrogen is essential for vegetative growth (leaves and stems). Alternatively, use green manure by growing legumes like sun hemp before whe…
Why do farmers practice crop rotation instead of growing the same crop repeatedly?
Answer
Crop rotation prevents soil nutrient depletion, breaks pest and disease cycles, maintains soil fertility naturally, and allows farmers to grow 2-3 crops per year. For example: wheat → gram → maize rot…
What happens when a farmer cross-breeds a high-yielding foreign cow (Jersey) with a disease-resistant local cow (Sahiwal)?
Answer
The offspring gets both traits - high milk production from Jersey and disease resistance from Sahiwal. This is called hybridization. The new variety produces more milk while surviving local diseases a…
Macro-nutrients
Answer
Nutrients required by plants in large quantities. Include nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S). Essential for basic plant growth and metabolism. Ex…
A poultry farmer wants to increase egg production. His hens lay only 100 eggs per month. What breeding strategy should he use?
Answer
Cross-breed local hardy birds (like Aseel) with high egg-laying foreign breeds (like Leghorn). Local breeds provide disease resistance while foreign breeds give higher egg production. The hybrid will …
Why does intercropping help prevent total crop failure?
Answer
Different crops have different pest preferences and nutrient needs. If one crop fails due to disease or pests, the other crop can still survive. Example: soybean + maize - if pests attack maize, soybe…
How do you prepare vermi-compost from kitchen waste?
Answer
1) Collect organic waste (vegetable peels, fruit scraps) 2) Add earthworms to decompose waste 3) Keep moist and covered 4) Turn regularly 5) After 2-3 months, rich compost is ready. Earthworms speed u…
Kharif crops
Answer
Crops grown during monsoon season (June-October). Need high temperature and humidity. Examples: paddy, cotton, sugarcane, maize, pulses like moong and urad. Depend on monsoon rains and are harvested i…
+12 more flashcards
Practise AllFrequently Asked Questions
What are the important topics in Improvement in Food Resources for Karnataka Board Class 9 Science?
How many flashcards are available for Improvement in Food Resources?
How should I revise Improvement in Food Resources for Class 9 exams?
Sources & Official References
- Karnataka SSLC — kseeb.kar.nic.in
- Dept of Pre-University Education, Karnataka
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Improvement in Food Resources
For serious students
Get the full Improvement in Food Resources chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for Karnataka Board Class 9 Science. Free to start, no card needed.