Which mineral contains Phosphorus?

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. The kaolininte is a layer silicate clay mineral, it is 1:1 type of mineral with___________________?

   A. 3-15 meq/100g CEC
   B. 40 meq/100g CEC
   C. 50 meq/100g CEC
   D. None of the above

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

   A. 54%
   B. 90%
   C. 68%
   D. 32%

   Submitted by: Shafiq Rehman

4. What is the effect of application of P2O5 fertilizer to a green manure leguminous crop in the availability of phosphorus to the succeeding crop?

   A. Green manure increases the availability in organic from to the next crop
   B. It does not affect the availability of phosphorous to succeeding crop 
   C. Greater amount of phosphorus is taken up and converted into organic form, which is released on decomposition of green matter
   D. It fixes the P2O5 through humus and reduces the availability..

   Submitted by: Shafiq Rehman

5. In which form plant uptake phosphorus?

   A. H2po4
   B. HPO4-2
   C. Both
   D. Non of these

   Submitted by: gmsyed

6. 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

7. 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

8. Availability of Phosphorus is maximum at:__________?

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

   Submitted by: Shafiq Rehman

9. The mineral component of soil consists of_________?

   A. Air
   B. Water
   C. both A and B
   D. none of the above

   Submitted by: Shafiq Rehman

10. Which one of the following clay mineral has the highest CEC?

    A. Kaolinite
    B. Montmorillonite
    C. Vermiculite
    D. Illite

    Submitted by: Mir Mehrbiyar