Phosphorus deficiency is widespread in most (_____%) 0f the soils of Pakistan.

Related Mcqs:

1. Phosphorus (P) is the second major nutrient essential for plant growth. With the exception of Nitrogen (N) and Potassium (K), Phosphorus is required by plants in_________?

   A. Lesser quantities
   B. Greater quantities
   C. Not required
   D. The above statement is wrong

   Submitted by: Shafiq Rehman

2. Although some acid soils do exist in the northern mountainous regions of Pakistan (Mansehra, Sawat, Dir). Almost all cultivated soils of the country are ________________, with high base saturation and low organic matter content (generally less than 1%)?

   A. Alkaline
   B. Very much acidic
   C. Calcareous
   D. both A & C

   Submitted by: Shafiq Rehman

3. Soils that have more than 20% organic matter are termed as organic soils. These are also called:________?

   A. Peat soil
   B. solonchalk soil
   C. Muck soil
   D. Both a and c

   Submitted by: Shafiq Rehman

4. Organic Soils are classified as ____________ and are also known as ____________ soils:

   A. Alfisols. fine & coarse textured
   B. Histosols, peat & muck
   C. Ultisols, Fe & Al rich
   D. None of the above

   Submitted by: Shafiq Rehman

5. Organic matter decomposes rapidly in Pakistani soils because of ____________ conditions, that is why our soils generally have < 1% organic matter:

   A. High temperature
   B. Alkaline
   C. Both a & b
   D. None of a & b

   Submitted by: Shafiq Rehman

6. The forest soils have lower bulk density than agricultural soils because of their ______ content.

   A. High organic matter
   B. Low organic matter
   C. Both a & b
   D. None of these

   Submitted by: Adnan

7. calcium is immobile in plants. Therefore, under conditions of deficiency, young tissue is affected first. calcium deficiency symptoms are:

   A. Death of terminal buds; roots tips also affected
   B. Abnormal dark green appearance of foliage
   C. Premature shedding of  blossoms & buds & weakened stem
   D. All of the above

   Submitted by: Shafiq-ur-Rehman

8. Availability of Phosphorus is maximum at:__________?

   A. Neutral
   B. Alkaline
   C. Acidic
   D. None of these

   Submitted by: Shafiq Rehman

9. In acidic soil which form of phosphorus uptake by plants?

   A. Primary orthophosphate
   B. Secondary orthophosphate
   C. Both
   D. None of these

   Submitted by: gmsyed

10. In alkaline soil which form of phosphorus uptake by plants?

    A. Primary orthophosphate
    B. Secondary orthophosphate
    C. both
    D. None of these

    Submitted by: gmsyed