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...