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...