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

Related Mcqs:

1. _________ erosion is the removal of a thin layer of soil by water acting over the whole surface. This type of erosion damaged very fertile lands located on slopes, some of which have been eroded to a depth of about 15 cm.

   A. Rain splash rill erosion
   B. Stream bank erosion
   C. Sheet erosion
   D. Gully erosion

   Submitted by: Shafiq Rehman

2. Generally speaking, only level to nearly level (0-2 % slope) & gently sloping lands (2-5 % slope) should be:

   A. brought under range crops
   B. Forests
   C. Both a & b
   D. None of the above

   Submitted by: Shafiq-ur-Rehman

3. Which one of the following crops is not cultivated under dry land farming?

   A. Jowar
   B. Ground nut
   C. Sugarcane
   D. All of the above

   Submitted by: Shafiq Rehman

4. Plants which grow on sandy soils:_________?

   A. Chasmophytes
   B. Lithophytes
   C. Psammophytes
   D. None of these

   Submitted by: Shafiq Rehman

5. Almost one third of the land area through out the world is affected by land degradation. Pakistan’s agriculture sector though facilitates employment to >65% but is facing challenges from:

   A. Erosion
   B. Salinity
   C. Waterlogging
   D. All of the above

   Submitted by: Shafiq-ur-Rehman

6. About 40% of the total area of Pakistan is affected by wind erosion. this includes:_________?

   A. Thal, Cholistan
   B. Parts of Mianwali and D.G
   C. Tharparkar & vast areas of Balochistan
   D. All of the above

   Submitted by: Shafiq Rehman

7. In Balochistan, deserts also exists in _________, which supoorts wind erosion excluding rocky mountains:

   A. Desert of Kharan
   B. Noshki
   C. Both A & B
   D. Qilla SaifUllah

   Submitted by: Shafiq Rehman

8. Availability of Zn is higher to crops in:_________?

   A. Acid soils 
   B. Sodic soils
   C. Saline-sodic soils
   D. Saline soils

   Submitted by: Shafiq Rehman

9. 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

10. The practice of managing rows of closely planted woody plants with annual crops planted in alleys in between hedges is called as:________?

    A. Soil conservation hedges
    B. Woody Hedgerows
    C. Hedgerows intercropping
    D. All of these

    Submitted by: Shafiq Rehman