Water logging is the state of the soil where the water table brought ______________capacity or root zone of plants?

Related Mcqs:

1. Water available in root zone of plants, is about 50% of soil moisture content. which is always available to the plants is called________________?

   A. Effective water
   B. Soil-moisture content
   C. Capillary water
   D. All are correct

2. Water available above the top of root zone of plants is about 15% of soil moisture contents, is mostly not available to plants celled_________________?

   A. Capillary water
   B. Irrigation water
   C. Effective water
   D. Hygroscopic water

3. Water logging caused by ____________ water, which during excessive irrigation percolates down and join under ground water table?

   A. Capillary
   B. Hygroscopic
   C. Gravity
   D. Free

4. The field capacity is the water retained by a saturated soil after free drainage of surplus water to the ground water table but the water retained by a saturated soil after being centrifuged by a centrifugal force of 1000 times that of gravity is called________________?

   A. Soil moisture
   B. Equivalent moisture
   C. Field moisture
   D. Available moisture

5. The water particles held in soil pores of root zone by _____________ against gravity and is known as capillary water?

   A. Cohesive force
   B. Capillary force
   C. Tension force
   D. Gravity force

6. the phenomenon of evaporation from water surfaces, from soil surfaces around the plants and from plants and transpiration from plants is called ___________________?

   A. Evapotranspiration
   B. Transpiration
   C. Evaporation
   D. All are correct

7. Water logging and soil salinization is a twin menace which has effected the agriculture sector severely, about _______________ hectares of land are wasted yearly?

   A. 30,000
   B. 35,000
   C. 40,000
   D. 45,000

8. The field capacity is the amount of water retained by a saturated soil mass after being acted by gravity. The amount of water required to bring the soil moisture content of that soil up to field capacity is called__________________?

   A. Soil-moisture deficiency
   B. Field-moisture deficiency
   C. Equivalent-moisture deficiency
   D. a and b are correct

9. In the initial stage of rainfall, when soil moisture available in the root zone is very low, the rate of infiltration ?

   A. Increases
   B. Reduces
   C. remain stagnant
   D. Normal

10. Water storage efficiency in the root zone depends upon__________________?

    A. Porosity
    B. Fine particles of soil
    C. Coarse particles of soil
    D. Climatic conditions