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which one of the following statement...

which one of the following statements is correct ?

A

At present it is not possible to grow maize without chemical fertilizers.

B

Extensive use of chemical fertilizers may lead to eutrophication of nearby water bodies.

C

Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plants

D

Cyanobacteria such as Anabaena and Nostoc are important mobilizers of phosphates and potassium for plant nutrition in soil.

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-MINERAL NUTRITION-ASSIGNMENT (SECTION C)
  1. Which of the following is a flowering plant with nodules containing fi...

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  2. Which one of the following elements is not an essential micronutrient ...

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  3. which one of the following statements is correct ?

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  4. A plant requires magnesium for :

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  5. About 98 per cent of the mass of everv living organism is composed of ...

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  6. Sulphur is an important nutrient for optimum growth and and productivi...

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  7. Which group of three micronutrient elements is required for both photo...

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  8. Which of the following is a component of coenzyme A, vitamin biotin, ...

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  9. Which one of the following elements is almost non - essential f...

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  10. plants take zinc in form of :

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  11. Element necessary for the middle lamella

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  12. In green plants, Boron assists

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  13. The most abundant element present in the plants is

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  14. Death of leaf tissues in plants is caused by deficiency of

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  15. Which of the following is not caused by deficiency of mineral?

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  16. When the plants are grown in magnesium deficient but urea rich soil, t...

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  17. The major portion of the dry weight of plants comprised of

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  18. Gray spots of oat are caused due to deficiency of

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  19. Study the cycle shown below and select the option which gives correct ...

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  20. is the Denitrifying bacteria.

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