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LAKHMIR SINGH & MANJIT KAUR-CROP PRODUCTION AN MANAGEMENT-EXERCISES
- Define manure .
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- What are advantages of manure ?
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- What is a fertiliser ?
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- Name any two fertilisers.
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- State two harmful effects caused by the excessive use of fertiliser.
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- Explain how , soil geets affected by the repeated growing of crops in ...
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- How does use of fertilisers help the farmers ?
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- What is weeding ?
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- Why is weeding necessary ?
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- What are weedicides ?
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- Name one weedicide.
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- What precaution should be taken while spraying weedicides ? Why ?
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- Give any four differences between manures and fertilisers.
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- Define the terms : harvesting
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- Define the terms : threshing
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- Define the terms : winnowing.
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- What are the two ways in which food grains are stored on a large scale...
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- What is the advantage of storing food grains in gunny bags ?
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- Name two traditonal methods of irrigation
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- Name two modern methods of irrigation.
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