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

Related Mcqs:

1. 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

2. The availability of essential nutrients from soil to the plants is controlled by the ________ properties of soil:

   A. Physical
   B. chemical
   C. Biological
   D. both A & B

   Submitted by: Shafiq Rehman

3. Which nutrients are immobile in plants?

   A. Ca only
   B. B only
   C. P only
   D. Both Ca & B

   Submitted by: Shafiq Rehman

4. Soil Organic Matter (SOM) serves not only as a reservoir of all the required plant nutrients, but it:

   A. Provides energy for the microbial
   B. Maintains the productivity of soil
   C. Gives structure to the soil
   D. All of these

   Submitted by: Shafiq Rehman

5. Elements essentially required for growth of all plants species are___________________?

   A. 32
   B. 15
   C. 16
   D. 3

6. Which nutrients are immobile in plants?

   A. Ca
   B. P
   C. B
   D. Both A & C

   Submitted by: Shafiq Rehman

7. 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

8. The process of accumulation of excess quantity of nutrients in water causing O2 deficiency is known as_____________________?

   A. Eutrophication
   B. Nitrification
   C. Denitrification
   D. Sedimentation

9. From the sources of plant nutrients availability in soil, which of the following statements are correct:

   A. The plant absorbs carbon as carbondioxides directly from the atmosphere.
   B. Water is the source of hydrogen
   C. Air & water is the source of oxygen & the chief source of soil nitrogen is organic matter & when organic matter decomposes it gives ammonia.
   D. All of the above

   Submitted by: Shafiq Rehman

10. Soil Organic Matter (SOM) which consists of about _______ % organic carbon plays a vital role by providing macro & micro nutrients:

    A. 72 %
    B. 58%
    C. 62 %
    D. Al of the above

    Submitted by: Shafiq Rehman