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प्रश्न
Why water should be used judiciously ?
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उत्तर
Water should be used judiciously because if water is supplied in more than adequate amount, it may harm the growth of the crop plants. If there is less water supply, then the seeds of crop plants will not germinate. Also, if water is supplied in excess, it will cause water logging and soil salinity that will ultimately lead to the death of crop plants by limiting the soil aeration.
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संबंधित प्रश्न
Distinguish between micronutrients and macronutrients. Give suitable examples.
Classify nutrients according to their sources.
Distinguish between farmyard manure and compost manure.
Define manure. What are different manures and how do they affect the soil ?
What are fertilizers ? Classify fertilizers.
Give a short account of biofertilizers.
Classify plant diseases depending upon their occurrence and transmission.
What are crop's pests? Suggest preventive measures to control pests.
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.
Cultivation practices and crop yield are related to environmental conditions. Explain.
