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प्रश्न
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 ?
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उत्तर
A sudden increase in the nitrogen and other soil compounds in the pond will lead to an increase in the population of algae and phytoplanktons (bloom of algae or bloom of phytoplanktons) as they nitrify very quickly and multiply. This will, eventually, alter the population of other organisms present in the pond.
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संबंधित प्रश्न
How do plants get nutrients?
Distinguish between micronutrients and macronutrients. Give suitable examples.
How plants get nutrients ?
Choose plant’s micronutrients and macronutrients from the following Iron, Chlorine, Sulphur, Copper, Nitrogen, Calcium, Manganese, Potassium, Zinc, Magnesium, Molybdenum, Phosphorus.
What are fertilizers ? Classify fertilizers.
Explain why a legume crop does not require nitrogenous fertilizers ?
Explain the objectives of mixed cropping.
Explain various steps in hybridization of crop plants.
Distinguish between fertilizer and manure. Give suitable examples. What are advantages and disadvantages of using fertilizer?
Why is organic matter important for crop production?
