Who consider the various properties of soil in relation to plant production?

Related Mcqs:

1. 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

2. The study of relationship between soil properties & plant production is known as:_________?

   A. Pedology
   B.  Soil Science
   C. Agronomy
   D. None of these

   Submitted by: Shafiq Rehman

3. 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

4. There are twelve soil orders found in the world of which six soil orders have been recognized at various locations are________?

   A. Andisols, Gelisols, Histosols, Spodosols, Oxisols, Ultisols
   B. Entisols, Inceptisols, Aridisols, Alfisols, Mollisols, Vertisols
   C. Andisols, Aridisols, Histosols, Vertisols, Regosols, Libosols
   D. The above statement is wrong

   Submitted by: Shafiq Rehman

5. 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

6. The resistance of a soil at various moisture contents to mechanical stresses or manipulations:

   A. Soil crusting
   B. Soil consistence
   C. Bulk Density
   D. Both a & c

   Submitted by: Shafiq Rehman

7. Journal ‘Plant and Soil’ is published from__________?

   A. USA
   B. Japan
   C. The Neterlands
   D. Pakistan

   Submitted by: Shafiq Rehman

8. 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

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. The capacity of a soil to function on sustained basis promoting plant and animal health:

    A. Soil Quality
    B. Soil Pollution
    C. Soil Salinity
    D. None of these

    Submitted by: Shafiq Rehman