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WorksheetsDAY 101 WORKSHEET ITI - Soil Water Properties Quiz
Total questions: 15
Worksheet time: 9mins
Hygroscopic water in soil is the water that
Is available for plant uptake
Occupies large capillary pores
Is absorbed by oven-dried soil from atmosphere
Exists only below permanent wilting point
Saturation capacity of soil refers to
Water content at permanent wilting point
Moisture held after free drainage
Maximum moisture holding capacity of soil
Water content equal to hygroscopic coefficient
Field capacity of soil is reached
Before free water drains
After drainage of free water
At hygroscopic water content
At osmotic equilibrium
Which soil has higher field capacity?
Gravel
Sand
Clay
Coarse sand
Soil moisture tension is expressed in terms of
mm of water
Percentage
Atmosphere units
Litres per hectare
Readily Available Moisture (RAM) is approximately
25% of available moisture
50% of available moisture
75% of available moisture
Equal to total available moisture
The instrument used to measure consumptive use of crops is
Anemometer
Tensiometer
Lysimeter
Suction plate
Field capacity represents the upper limit of capillary water (a)
Ultimate wilting point occurs at moisture content higher than field capacity (a)
Assertion: Ultimate wilting point occurs at hygroscopic water content. Reason: At this stage plants cannot regain turgidity even after addition of water.
Both A and R are true and R is correct explanation of A
Both A and R are true but R is not the correct explanation
A is true but R is false
A is false but R is true
Hygroscopic water is absorbed by oven-dried soil from the (a) .
The maximum moisture holding capacity of soil is called (a) .
Field capacity is attained after drainage of (a) water.
Permanent wilting point occurs when transpiration rate exceeds (a) rate.
Temporary wilting generally occurs during (a) summer days.
