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Plant Nutrition

Which of the ...

Question

Which of the following nutrients is fixed by rhizobium bacteria into the soil?

A

Potassium

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B

Phosphorus

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C

Calcium

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D

Nitrogen

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Similar questions

Q. How do rhizobium bacteria help in replenishment of nutrients in the soil?

Which bacteria fixes nitrogen in the soil ?

(a) Nitrobacter (b) Nitrosomonas
(c) Rhizobium (d) Clostidium

Q. Which of the following nutrients is fixed by Rhizobium bacteria into the soil?

Refer the given passage and answer the following questions

At present, the primary nutrient which limits the agricultural yield is nitrogen (N). Some plants are capable to produce more

N_{2}

than they consume. These plants show a symbiotic relationship with

N_{2}

-fixing bacteria such as Rhizobium. These bacteria produce root nodules in leguminous plants and convert atmospheric

N_{2}

into nitrogenous compounds. Rhizobium bacteria are gram-negative bacteria, which show host specificity and fix

N_{2}

in the presence of a red pigment called leghaemoglobin. It protects nitrogen-fixing enzyme nitrogenase from oxygen.

Read the given statements and select the correct answer.

Statement 1: Rhizobium bacteria can also live freely in the soil and carry out

N_{2}

-fixation by themselves.
Statement 2: Such Rhizobium bacteria are called free-living

N_{2}

-fixing bacteria.

Q. Which among the following plants have root nodules containing nitrogen fixing bacteria

R h i z o b i u m

?

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