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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
Name three most important nutrients required for plant growth.
What is green manuring?
Write down disadvantages of crop rotation.
Write about three main criteria which should be considered while selecting the crops for rotation?
Define plant breeding?
Explain the methods of controlling insect pests.
Distinguish between fertilizer and manure. Give suitable examples.
Explain various types of irrigation systems in India.
Compare between mixed cropping and intercropping.
Discuss the various methods which are used to control plant diseases.
