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...