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प्रश्न
How plants get nutrients ?
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उत्तर
Nutrients are supplied to the plants by air, water and soil.
From these 16 essential elements, carbon and oxygen are obtained from air and hydrogen from water. Remaining 13 are supplied by the soil.
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संबंधित प्रश्न
Write down two advantages of fertilizer over manure
Explain the term eutrophication with suitable example
How does chemical nature of the soil change due to continued use of chemical fertilizers ?
Define manure. What are different manures and how do they affect the soil ?
Explain why a legume crop does not require nitrogenous fertilizers ?
Mention three effects of excessive irrigation.
Why water should be used judiciously ?
What are crop's pests? Suggest preventive measures to control pests.
Distinguish between fertilizer and manure. Give suitable examples. What are advantages and disadvantages of using fertilizer?
Explain the mechanism of compost formation.
