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प्रश्न
Explain advantages of irrigation.
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उत्तर
Advantages of irrigation are as follows:
1. It provides freshwater to the crop plants.
2. It provides moisture for the germination of seeds.
3. It is essential for the growth and elongation of the roots of the crop plants.
4. It is essential for the absorption of nutrient elements by the crop plants from the soil.
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संबंधित प्रश्न
How plants get nutrients ?
Compare the use of manures and fertilizers in maintaining soil fertility.
During the downpour in a village, the rain water carried away excess of nitrogenous and other compounds present in the soil to a pond. How will they affect the growth of algae and phytoplankton in the pond ?
How does chemical nature of the soil change due to continued use of chemical fertilizers ?
Give a short account of biofertilizers.
Why are leguminous crops desirable in crop rotation?
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 what will happen if in a cultivated field only manures are supplied and in another field only fertilizers are supplied, keeping all other conditions similar.
If there is low rainfall in a village throughout the year, what measures will you suggest to the farmers for better cropping?
