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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
What are the advantages of inter-cropping?
Classify nutrients according to their sources.
Compare the use of manures and fertilizers in maintaining soil fertility.
Why water should be used judiciously ?
Define plant breeding? Describe the various methods of plant breeding.
Explain various effects of weeds on crop plants.
What is the advantage of using insect resistant varieties?
Distinguish between fertilizer and manure. Give suitable examples. What are advantages and disadvantages of using fertilizer?
Explain the various preventive measures against insect pests.
Differentiate between the following
Mixed cropping and Intercropping
