PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
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Rahul had been cultivating rice continuously on his field for several years and noticed a gradual decline in crop yield despite using fertilisers. In contrast, Sonam followed a practice of growing moong after harvesting rice and observed improved soil fertility and better yield in the next cropping season. Explain the scientific reason behind the difference in their observations.
1. What mistake did Rahul make in his farming method?
2. Why does continuous rice cultivation reduce soil fertility over time?
3. What makes moong cultivation beneficial after rice?
4. What type of relationship exists between leguminous plants and nitrogen-fixing bacteria?
5. How does this relationship reduce dependence on chemical fertilisers?
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