Agriculture
Threshing and winnowing
This Class 9 Agriculture topic from Crop Protection and Storage explains how harvested crops are processed to separate useful grains from stalks, husks, and other impurities. Students learn the purpose and basic methods of threshing, including beating, animal or machine-powered operations, and winnowing, which uses moving air to separate lighter chaff from heavier grains. The topic also highlights careful handling, cleanliness, safety, and the role of these steps in reducing post-harvest losses before storage.
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Practice questions are not available for this topic yet. We plan to add questions with clear explanations soon. You can keep practising other topics in the meantime.
- Class / subject
- 9 · Agriculture
- Chapter
- Crop Protection and Storage
- Topic
- Threshing and winnowing
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