An interception system is used when the slope is _______; it is also known as a slope ditch system.
The range of capillary water in soil is from -1/3 bar to _______.
Statement 1: Less compact soils have a higher total pore space. Statement 2: Less aggregated soils have more water retention.
Which of the following crops has the highest water requirement?
A mini watershed covers an area of _____.
Which of the following is wrong about drip irrigation?
The formula for water requirement (WR) is ______?
The unit of water use efficiency is ______?
The process by which any liquid escapes from the surface into the atmosphere in a gaseous state is known as ______.
For sugarcane crops, which irrigation method is most suitable?
Statement 1: Sensitive stages for irrigation in sunflower 🌻 are head formation & early grain filling. Statement 2: Sensitive stages of irrigation in mustard are flowering & siliqua development.
Which of the following is NOT an effect of poor drainage?
Field capacity is the ______ limit of available water.
In poorly drained soil, which of the following does NOT accumulate?
Laterals are provided only on one side of the mains in the ______ system.
If residual sodium carbonate is > 2.5 meq/L, the water is considered ______.
For open ditches in small areas, the drainage coefficient (DC) ranges from ______.
The presence of low soluble salts in the soil _______ osmotic potential, resulting in _______ available water content.
______ textured soil has more water holding and retention capacity, so more water availability.
1 ha cm is equal to how many liters?
Mole drains are suitable for ______ soil.
Statement 1: Field capacity (FC) usually occurs between 1/10 bar (heavy soil) and 1/3 bar (coarse soil). Statement 2: FC is also termed the drained upper limit.
If the sodium adsorption ratio (SAR) is 18-26, then the sodium hazard is classified as ______.
Drip irrigation saves how much water (percentage)?
Which of the following is NOT a type of surface drainage?
Find the crop water use efficiency if the crop yield is 50 kg/ha and evapotranspiration is 5 mm.
According to the US Soil Salinity Laboratory grouping of irrigation water, what is the EC of medium salinity water?
Statement 1: High soil depth results in high available water content. Statement 2: Saturation occurs when all macropores are filled with water only.
The word "watershed" was introduced in ________ ?
Statement 1: A watershed is that water area which drains or contributes runoff to a common outlet. Statement 2: A watershed is defined as a geohydrological unit draining to a common point by a system of drains.