Shallow channels that can be readily corrected by routine tillage operations is called:

Related Mcqs:

1. Small rivulets or finger like channels formed on the surface of earth by action of water, these channels are of small depth & can be leveled by tillage operations is:

   A. Gully erosion
   B. Sheet erosio.
   C. Stream bank erosion
   D. None of these

   Submitted by: Shafiq Rehman

2. Any tillage and planting system that maintains at least 30% of the soil surface covered by residue after planting for the purpose of reducing soil erosion by water:

   A. Deep Tillage
   B. Conservation Tillage
   C. Both a & b
   D. None of these

   Submitted by: Shafiq Rehman

3. Deficiency of B can be corrected through application of chemical fertilizer of_________________?

   A. Solubor
   B. Boric acid
   C. Borax
   D. All the above

4. Water occupied the larger soil pores and moves down readily under the force of gravity. Water in excess of the field capacity is termed:

   A. Capillary water
   B. Hygroscopic water
   C. Gravitational water
   D. None of the above

   Submitted by: Shafiq Rehman

5. Salt-tolerant plants are called ____________________?

   A. Glycophytes
   B. Halophytes
   C. Xerophytes
   D. All the above

6. Biochemical reduction of nitrate to nitrite or gaseous nitrogen is called ________________________?

   A. Reduction
   B. Oxidation
   C. Denitrification
   D. None of the above

7. An intrazonal group of dark calcareous soils high in clay and having mainly montmorillonitic type clay are called as:________?

   A. Regur
   B. Ragour
   C. Montmorillosol
   D. Regosol

   Submitted by: Shafiq Rehman

8. The unique soil environment under the influence of plants roots is called rhizosphere and this term was given by__________?

   A. Hiltner
   B. Aristotle et al.
   C. A.Q khan
   D. Helium. S. Denial

   Submitted by: Shafiq Rehman

9. Erosion permitting and erosion resisting crops grow alternatively at right angle to the slope of the land is called as:_________?

   A. Linear planting
   B. Strip planting
   C. Cover planting
   D. All of the above

   Submitted by: Shafiq Rehman

10. The sum total condition in which organisms live is called: _____________?

    A. Biodiversity
    B. Environment
    C. Ecotone
    D. Both A & C

    Submitted by: Shafiq-ur-Rehman