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

Related Mcqs:

1. 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

2. 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

3. Any material such as straw, sawdust, leaves, plastic films, & loose soil that is spread upon the surface of the soil to protect the soil & plant roots from the effects of raindrops, soil crusting, freezing or evaporation:

   A. Mull
   B. Mulch
   C. Mycorrhizae
   D. Muck

   Submitted by: Shafiq Rehman

4. Which one of the following techniques is used for assessing available P in soil and does not include growing plants:

   A. E-Value
   B. L-Value
   C. a-Value
   D. A-Value

   Submitted by: Shafiq Rehman

5. Immobile nutrient in soil is:_________?

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

   Submitted by: Shafiq Rehman

6. 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

7. Soil additive which stabilizes the soil, improves resistance to erosion, increases to permeability to air & water, improves texture, eases cultivation or otherwise improves soil quality:

   A. Soil amendment
   B. Soil conditioner
   C. Both a & b
   D. None of the above

   Submitted by: Shafiq Rehman

8. Which instrument is used for determining soil texture___________________?

   A. Lysimeter
   B. Hydrometer
   C. Thermometer
   D. All the above

9. Which of the following techniques is/are used for the soil fertility evaluation?

   A. Soil testing
   B. Plant tissue testing
   C. Aspergillus niger test
   D. All of these

   Submitted by: Mir Mehrbiyar

10. From the point of view of crop production, Soil testing refers to______________?

    A. Laboratory analysis assessing plant available nutrient status
    B. Collection of plant leaves samples only
    C. Salinity & elemental toxicity of a soil
    D. Both A & C

    Submitted by: Shafiq Rehman