What is the best pH of soil for cultivation?

Related Mcqs:

1. Removal of top soil by soil erosion result in the loss of soil:

   A. Nitrites
   B. Nitrates
   C. Nitrogen
   D. Nitric and nitrous acids

2. Shifting cultivation by man causes is / are:

   A. Loss of valuable forested land, which is brought under a totally unproductive use
   B. Loss of valuable timber
   C. Accelerated erosion and other related features
   D. All of the above

3. Of the ________ million ha area under cultivation, 15.62 million ha area (76%) is under irrigation:

   A. 21
   B. 22
   C. 23
   D. 24

4. The most common method used for cultivation on hills:

   A. Levelling
   B. Ridge terracing
   C. Bench terracing
   D. Channel terracing

5. In water logged soil plants cannot grow properly because the soil is:

   A. Physiologically wet
   B. Physiologically dry
   C. Physically dry
   D. None of the above

6. When a plant first begins to wilts permanently in a pot, its 54.5 gms of soil has 4.5 gms of water. The PWP of this soil is:

   A. 4.50%
   B. 9%
   C. 8.25%
   D. 16.50%

7. The ration of volume of pores in the soil to the total soil volume is referred to as:

   A. Pore frequency ratio
   B. Pore density ration
   C. Pore abundance ratio
   D. Pore space ratio

8. When a soil has been thoroughly wetted and then allowed to drain until capillary movement of the water has stopped, the water content of the soil will give an estimate of it’s:

   A. Gravitational water
   B. Capillary water
   C. Field capacity
   D. Storage capacity

9. Good soil is:

   A. Which allows limited amount of water to be retained into it
   B. Which allows water to pass through it very quickly
   C. Which allows percolation the water slowly from it
   D. Which holds whole of the water that enters into it

10. Fertility of soil is measured by its ability to:

    A. Hold organic matter
    B. Hold water
    C. Support life
    D. Retain nutrients