The credit for identifying the essentality of nitrogen to plants goes to________?

Related Mcqs:

1. The credit for identifying the essentality of K, Ca, Mg and P to planta goes to________?

   A. C. Sprengel
   B. Theodore Saussure
   C. Dr. Muhammad Sharif et al.
   D. Shafiq Khalil et al.

   Submitted by: Shafiq Rehman

2. Nitrogen & sulphur dioxide liberate from motor vehicles & industries. Nitrogen & Sulphur gases dissolve in the water vapour of atmosphere & form nitric & sulphuric acid. This rain water falls on soil as__________ & contaminates soil also:

   A. Acid rain
   B. Neutral rain
   C. Both A & B
   D. None of the above

   Submitted by: Shafiq Rehman

3. After self pollination of red flowered plants out of 40 plants of progeny were white flowered. this indicates that the plants are__________________?

   A. Heterogeneous
   B. Heterozygous
   C. Homogenous
   D. Homozygous

4. Phosphorus (P) is the second major nutrient essential for plant growth. With the exception of Nitrogen (N) and Potassium (K), Phosphorus is required by plants in_________?

   A. Lesser quantities
   B. Greater quantities
   C. Not required
   D. The above statement is wrong

   Submitted by: Shafiq Rehman

5. Previously Essential nutrients required for the growth of plants were sixteen. In recent time the essential nutrients required for the growth of plants are:_________?

   A. 16
   B. 17
   C. 18
   D. None of the above

   Submitted by: Shafiq Rehman

6. The available from of nitrogen for plant is________________?

   A. NO₃
   B. NH₄
   C. Both a & b
   D. None of the above

7. Nitrogen gases are involved in_____________________?

   A. Sleepy feelings
   B. Hair disease
   C. Mental disease
   D. Acid rains

8. Loss of nitrogen in the form of NH3 in alkaline medium is known as_________?

   A. Denitrification
   B. Leaching
   C. Volatilization
   D. None of these

   Submitted by: Shafiq Rehman

9. Azotobacter fixes atmospheric nitrogen in the soil by:__________?

   A. Symbiotically
   B. Non-symbiotically
   C. Can fix A & B
   D. None of these

   Submitted by: Mir Mehrbiyar

10. Flow of nitrogen in soil due to:_________?

    A. Diffusion
    B. Interception
    C. Mass flow
    D. None of the above

    Submitted by: Shafiq Rehman