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:

Related Mcqs:

1. The lower leaves turn yellow and in some crops they quickly start drying up as if suffering from shortage of water, stunted growth, leaves & fruits shedding & whole plant becomes yellow, are deficiency symptoms of:_________?

   A. Potash
   B. Nitrogen
   C. Calcium
   D. Both a & c

   Submitted by: Shafiq Rehman

2. The water loss through transpiration from vegetative and evaporation from soil surface is known as__________________?

   A. Evaptranspiration
   B. Transpiration
   C. Evaporation
   D. Guttation

3. Which chemical used to prevent evaporation from surface of water in water bodies?

   A. Cetyle alcohol
   B. Methyle alcohol
   C. both A and B
   D. None of these

   Submitted by: Shafiq Rehman

4. Which chemical used to prevent evaporation from surface of water in water bodies?

   A. Cetyle alcohol
   B. Methyle alcohol
   C. both A and B
   D. None of these

   Submitted by: Shafiq Rehman

5. 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

6. 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

7. The tree sends down roots from its branches to the soil is know as:_______?

   A. Oak
   B. Pine
   C. Banyan
   D. Palm

   Submitted by: Muhammad Ali Kunbhar

8. The Tree sends down roots from its branches to the soil is known as:___________?

   A. Oak
   B. Pine
   C. Banyan
   D. Palm

   Submitted by: Fahad Mehsud

9. 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

10. Items needed for synthesis of plant food in green leaves are _________ & the process through which it takes place is called photosynthesis:

    A. Sunlight
    B. Chlorophyll
    C. Water & plant nutrients
    D. All of the above

    Submitted by: Shafiq Rehman