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

Related Mcqs:

1. 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

2. 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

3. 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

4. After self pollination of red flowered plants out of 40 plants of progeny were white flowered. this indicates that the plants are__________________?

   A. Heterogeneous
   B. Heterozygous
   C. Homogenous
   D. Homozygous

5. The availability of essential nutrients from soil to the plants is controlled by the ________ properties of soil:

   A. Physical
   B. chemical
   C. Biological
   D. both A & B

   Submitted by: Shafiq Rehman

6. 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

7. The science of growing terrestrial plants in an aerated solution is known as___________________?

   A. Nutrient film technique
   B. Hydrology
   C. Hydrants
   D. Hydroponics

8. Principles of soil conservation does not include:

   A. Minimize run-off  & store surplus water
   B. Use non-arable lands effectively
   C. Leave barren lands uncultivable to support desrtification degradation
   D. Construction of mini dams & ponds to store water for live stock & other porposes

   Submitted by: Shafiq Rehman

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. Previously Essential nutrients required for the growth of plants were sixteen. In recent time the essential nutrients required for the growth of plants are:_________?

    A. 16
    B. 17
    C. 18
    D. None of the above

    Submitted by: Shafiq Rehman