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

Related Mcqs:

1. 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

2. 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

3. Any material such as straw, sawdust, leaves, plastic films, & loose soil that is spread upon the surface of the soil to protect the soil & plant roots from the effects of raindrops, soil crusting, freezing or evaporation:

   A. Mull
   B. Mulch
   C. Mycorrhizae
   D. Muck

   Submitted by: Shafiq Rehman

4. Which nutrients are immobile in plants?

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

   Submitted by: Shafiq Rehman

5. Which nutrients are immobile in plants?

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

   Submitted by: Shafiq Rehman

6. 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

7. 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

8. The process by which nutrients chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil:

   A. Infiltration
   B. Percolation
   C. Leaching
   D. Seeping

   Submitted by: Shafiq Rehman

9. The kind, rate and intensity and pedogenic processes are controlled by ________ ,soil-forming factors?

   A. 6
   B. 7
   C. 4
   D. None of the above 

   Submitted by: Shafiq Rehman

10. Soil additive which stabilizes the soil, improves resistance to erosion, increases to permeability to air & water, improves texture, eases cultivation or otherwise improves soil quality:

    A. Soil amendment
    B. Soil conditioner
    C. Both a & b
    D. None of the above

    Submitted by: Shafiq Rehman