The credit for identifying the essentality of K, Ca, Mg and P to planta goes to________?

Related Mcqs:

1. The credit for identifying the essentality of nitrogen to plants goes to________?

   A. Dr.Muhammad Sharif
   B. Theodore-saussure
   C. Shafiq Baloch at.el
   D. Sach and knoop

   Submitted by: Shafiq Rehman

2. The nutrient particularly influencing root growth is___________________?

   A. Zinc
   B. Nitrogen
   C. Organic
   D. Phosphorus

3. Plutonic rocks are also called____________________?

   A. Intrusive igneous
   B. Metamorphic
   C. Sedimentary
   D. Extrusive igneous rock

4. The water diffusivity has the units of:__________?

   A. cm/s
   B. s/cm
   C. cm2
   D. cm2/s

   Submitted by: Shafiq Rehman

5. The virus infecting bacteria is called:_________?

   A. Bacteroid
   B. Bacteriophage
   C. Bacterin
   D. All of these

   Submitted by: Shafiq Rehman

6. _______________ of alluvium (stratified sediment) by earth-worms is the most important soil-forming process in the alluvial plain of Pakistan:

   A. Homogenization
   B. Pedoturbation
   C. Lessivage
   D. Melanization

   Submitted by: Shafiq Rehman

7. According to a latest research, Pakistan is predominantly a dryland country; 80% of its land area is arid and semi arid, 12% sub-humid and 8% under humid climate. Thus , soils of arid & semi-arid regions are vulnerable to a wide range of degradation process. As the case in arid and semi-arid climates elsewhere in south-central/southern Asia and Sub-Saharan Africa; _________________ are among the major causes of soil degradation and desertification?

   A. Drought stress
   B. Accelerated erosion & salinization
   C. Depletion of soil fertility and SOM
   D. All of the above

   Submitted by: Shafiq Rehman

8. 1 meq of HCl is equal to_________?

   A. 1.4 mg of N
   B. 14 mg of N
   C. 0.14 mg of N
   D. 140 mg of N

   Submitted by: Shafiq Rehman

9. In low-rainfall areas, huge shifting sand dunes are commonly found, particularly near human habitations. Techniques of afforesting the shifting dunes needed to be implemented. These techniques consist of___________?

   A. Treatment of shifting sand-dunes by fixing barriers in parallel stripes or in a chess-board design, using the local shrub material starting from the crest of the dunes to protect the seedlings from burial or exposure by the blowing of sand.
   B. Protection against biotic interference
   C. Both a & b
   D. None of these

   Submitted by: Shafiq Rehman

10. Which is the correct sequence of soil erosion by water:

    A. Rill-Sheet-Gully
    B. Gully-Sheet-Rill
    C. Sheet-Rill-Gully
    D. None of these

    Submitted by: Shafiq Rehman