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Which one of the following statements is...

Which one of the following statements is correct:

A

Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plant.

B

Cyanobacteria such as Anahena and Nostoc are important mobilizers of phophates for plant nutirition in soil.

C

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

D

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

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MODERN PUBLICATION-MINERAL NUTRITION-EXERCISE
  1. Bacteria which reduce nitrate in soil to nitrogen are:

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  2. Which of the following is a flowering plant,whose nodules containing f...

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  3. Which one of the following statements is correct:

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  4. Which one of the following is not an essential element for plants?

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  5. Sulphur is not a constituent of:

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  6. Function of leghamoglobin a red pigment in root nudules of legguminous...

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  7. Which one of the following is micronutrient in platns?

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  8. Hydroponics is method of:

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  9. Fill in the blanks: The deficiency of magnesium result in ....in the ...

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  10. Fill in the blanks: .... helps in the conversion of oxalic acid into c...

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  11. Fill in the blanks: The deficiency of ......... causes the death of th...

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  12. Fill in the blanks: The deficiency of copper in Citrus results in dise...

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  13. Fill in the blanks: Drought spots of apples is caused by the deficienc...

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  14. Fill in the blanks: The echnique of cultuning plants in nutrient solut...

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  15. Fill in the blanks: Abbreviation NPK means ......... .

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  16. Fill in the blanks: The conversion of ammonia to nitrate is called.......

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  17. Fill in the blanks: Absorption of mineral ions is a selective process ...

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  18. Fill in the blanks: Sundew is an ...... plant.

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  19. Fill in the blank Elements which are required by the plants in minut...

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  20. Fill in the blank Carbon is absorbed by the plant as …………….from the ...

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