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प्रश्न
Why do farmers plant leguminous crops in crop rotations/mixed cropping?
उत्तर
- Legumes have bacteria on nodules which are on the roots of the plants. The bacteria on the nodules takes nitrogen from the air and fixes it into the soil, so that other plants that require nitrogen can use it as well.
- Rotation of crops improves the fertility of the soil and hence brings about an increase in the production of food grains.
- Rotation of crops helps in saving on nitrogenous fertilizers, because leguminous plants grown during the rotation of crops can fix atmospheric nitrogen in the soil with the help of nitrogen-fixing bacteria.
- Crop rotation adds diversity to an operation.
संबंधित प्रश्न
Which bacteria are rod shaped?
In what respect do you consider bacteria as simple organisms?
Define the following:
Bacteria
Define the following:
Gram negative and Gram positive bacteria
Write short notes on:
Flagellation in bacteria
Differentiate between:
Gram positive and Gram negative bacteria
The question has four options. Choose the correct answer:
Bacteriology is the study of
All bacteria have flagella.
Write the name of any nitrogen fixing bacteria.
Give an account of classification of bacteria based on the shape.
The correct statement regarding Blue green algae is ________.
Difference between Gram-positive and Gram-negative bacteria
______ is not a shape seen in bacteria.
Which one of the following is a symbiotic bacteria?
The bacteria involved in curd formation is ______.
______ bacteria live on dead organic matter.
The two non-symbiotic nitrogen-fixing bacteria are ______ and ______.
Assertion: Some bacteria may be non-motile.
Reason: Bacteria have a special structure called flagella which are found on cell surfaces.
Citrus canker is caused by which of the following organisms?
