The ratio of mass weight of oven dry soil solids to the volume of soil gives the_____________.
The total quantity of water required for a life period of a crop is________.
Capillary in soil pores is due to____________.
1 atmosphere = -------------- cm of water column.
Which of the following soil water is available for normal crop growth?
Poor quality irrigation water is not suitable for use in___________.
Water saving in trickle irrigation method ranging ___________.
One of the highest gravity dam in the world__________.
The device used to measure daily loss of water through evaporation________.
VSWB Pan evaporimeter
USWB Pan Meter
USWB Class-I open pan evaporimeter
Applying irrigation through shallow furrows is called_____ .
When all the pores are filled with water than soil is to be said saturated it is known as________.
Boron is toxic beyond ________ ppm in irrigation water for most of the field crops.
Water use efficiency is higher in ______ crops.
Metric potential is always______.
Entry of water from the surface in to soil is termed as____________.
The water lies between FC and PWP is known as _______water.
Salinity of irrigation water is measured in ________.
Artificial removal of excess water is called _______.
One Cusec indicate ____.
32.28 litres /sec
Which of the following soils have longer strip of irrigation ?
Tensiometer is more suitable for ______soil.
The range of soil moisture(bars) at field capacity is________.
-0.6 to -0.5
-1 to -0.3
In wheat crop the most critical stage for soil moisture is ____.
Which crop among the following has the maximum duty of water?
Irrigation frequency depends on _________.
Number of score out of 25 =
Score in percentage =
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