Which of the following nutrient elements are regarded as energy exchangers:

Related Mcqs:

1. Which of the following nutrient play the most effective role in controlling rate of transpiration:

   A. Potassium
   B. Zinc
   C. Phosphorus
   D. Mg

   Submitted by: Shafiq Rehman

2. The seventieth element included in the list of essential nutrient element is:__________?

   A. Vanadium
   B. Cobalt
   C. Sodium
   D. Nickle

   Submitted by: Shafiq Rehman

3. The nutrient element silicon (Si) is:_________?

   A. Beneficial
   B. Harmful
   C. Both a and b
   D. None of the above

   Submitted by: Shafiq Rehman

4. 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

5. The major soil fertility problems in Pakistani soils deficiencies of N, P and Zn. Deficiencies K, Fe, and B also occur in specific crop genotypes or soil types, while deficiencies of S, Cu, and Mn are negligible. however, the common nutrient deficiencies are_________________: and some micronutrients including Mo?

   A. N, P, K
   B. Ca, Mg, S
   C. both A & B
   D. The above statement is wrong

   Submitted by: Shafiq Rehman

6. The diagnostic techniques used in evaluating soil nutrient status and determining fertilizer requirements of the crop include:

   A. Nutrient deficiency symptoms & field experimentation
   B. Greenhouse pot experimentation & soil testing
   C. Plant analysis
   D. All of the above

   Submitted by: Shafiq Rehman

7. If a manure pile is exposed to the rain, what nutrient will be lost the most ?

   A. Ca
   B. Mg
   C. S
   D. N

   Submitted by: Shafiq Rehman

8. Which leaf of rice is sampled for tissue nutrient analysis?

   A. Mature leaf
   B. Lower leaf
   C. Both A & B
   D. None of these

   Submitted by: Shafiq Rehman

9. Integrated Nutrient Management (INM) is a well-accepted approach for the sustainable management of________?

   A. Soil Productivity
   B. Increased crop production
   C. both a and B
   D. None of these

   Submitted by: Shafiq Rehman

10. Immobile nutrient in soil is:_________?

    A. P
    B. N
    C. Mg
    D. None of the above

    Submitted by: Shafiq Rehman