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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
Compare the use of manure and fertilizers in maintaining soil fertility.
Name three most important nutrients required for plant growth.
Explain why a legume crop does not require nitrogenous fertilizers ?
How does excessive irrigation lead to soil salinity ?
Write down disadvantages of crop rotation.
Why are leguminous crops desirable in crop rotation?
Explain the mechanism of compost formation.
Define irrigation. Why is irrigation of crops essential? Mention the harmful effects of excessive irrigation.
Explain the various preventive measures against insect pests.
If there is low rainfall in a village throughout the year, what measures will you suggest to the farmers for better cropping?
