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प्रश्न
Your advice is sought to improve the nitrogen content of the soil to be used for cultivation of a non-leguminous terrestrial crop.
- Recommend two microbes that can enrich the soil with nitrogen.
- Why do leguminous crops not require such enrichment of the soil?
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उत्तर
- Two microbes that can enrich the soil with nitrogen are Nostoc and Anabaena.
- Legumes are very good for enriching the soil. They do not require any enrichment, as in their case nitrogen is fixed symbiotically. They have nodules on their roots with bacteria called rhizobium, whose function is to fix the atmospheric nitrogen directly into the soil. These nodules contain all the necessary components for nitrogen fixation.
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संबंधित प्रश्न
Name the aquatic fern commonly used in paddy fields as a biofertilizer.
Which one of the following is a free-living bacterial biofertilizer?
______ associated with plants like Azolla and Cycas can be used as a biofertilizers.
State any three benefits of mycorrhiza.
Identify the CORRECT statement regarding Ectomycorrhizae.
Which of the following is a free-floating aquatic fern?
Which of the following is one of the basic elements considered in green revolution?
Which of the following is/are symbiotic nitrogen fixing microbe?
VAM stands for ______.
Blue green algae are used as bio fertilizers because they ____________.
Glomus is a ______.
Biofertilizers are
Farmers are often suggested to use the following organism in their crop land so as to improve the soil fertility. Explain.
Rhizobium
Match the pairs:
| Column A | Column B | ||
| (i) | Compost making biofertilizer |
(a) | Azotobacter |
| (ii) | N2 fixing biofertilizer | (b) | Mycorrhiza |
| (iii) | Fungal biofertilizer | (c) | Agrobacterium |
| (iv) | Phosphate solubilizing biofertilizer |
(d) | Actinobocteria |
Name the microorganisms involved in the production of Roquefort cheese, Camembert cheese and Swiss cheese.
Endomycorrhizae grow in ______ of higher plants.
Which of the following organisms is a nitrogen-fixing bacterium that forms a symbiotic association with leguminous plants?
Which of the following is NOT a primary benefit of using biofertilizers in agriculture?
What is the Greek etymological origin of the term 'mycorrhiza'?
