29 Questions
What is the main difference between sprinkle irrigation and drip irrigation?
Sprinkle irrigation applies water under high pressure, while drip irrigation emits water directly to the soil through emitters.
What is the purpose of subsurface drip irrigation?
To provide frequent light irrigations using buried drip tubes.
Why is well-informed decision-making about irrigation important?
To ensure water is applied according to crop needs.
What does soil moisture monitoring help determine?
When and how much water to apply.
Why is irrigation scheduling important?
To apply irrigation water based on crop monitoring.
What role does water flow measurement play in farm-level water management?
Ensuring optimal water deliveries to the field.
What is one benefit of planning and implementing water-saving practices during nondrought periods?
Prevention of conflicts between agricultural and non-agricultural users
What is the purpose of stable irrigation channels?
To decrease scour
What is the most common type of irrigation conveyance channel according to the text?
Earth canals
Why are irrigation lands often located far from their water sources?
As a rule for obtaining water from natural streams
Which type of channel is an 'earth canal' according to the text?
A channel excavated in natural material
What role do diversion requirements play in terms of water distribution equity?
Allocate water fairly among users
How does moisture measurement in irrigated soil contribute to water management?
It helps in determining irrigation scheduling and optimizing water use.
Which device measures soil moisture by detecting the change in dielectric constant?
Capacitance Sensors
What is the main advantage of moisture measurement for crop productivity?
Improved water management
How do Neutron Moisture Gauges measure soil moisture?
By measuring the number of neutrons scattered back.
What is the purpose of Irrigation Diversion Requirement (IDR)?
To satisfy farm irrigation requirements
Why is efficient moisture management crucial for water conservation?
To protect natural resources
What is the first step in accurately measuring flowing water using satellite-based remote sensing?
Collecting data over large areas
Which technique plays a crucial role in analyzing flow data and generating meaningful reports?
Hydrological modeling
Why is proper data analysis and reporting essential in satellite-based remote sensing of river discharge?
To interpret the collected data accurately
Which of the following instruments is NOT mentioned as being used in satellite-based remote sensing for river discharge?
Photogrammetry
In the context of remote sensing for river discharge, what role do statistical analysis, hydrological modeling, and data visualization techniques play?
They assist in interpreting flow data and generating meaningful reports
What method can be used to determine the water needs of crops based on various factors?
Using soil moisture sensors
Which practice involves applying a layer of material around plants to reduce evaporation and suppress weed growth?
Mulching
What aspect of irrigation system maintenance aims to minimize water losses?
Properly designing the system
How can irrigation auditing help in water conservation?
Periodically evaluating the system
Which selection can reduce water requirements for crops?
Choosing crop varieties adapted to local conditions
Why is the measurement of flowing water considered crucial in hydrology?
For managing water resources effectively
Learn about the significance of moisture measurement in irrigated soil for effective water management and crop productivity. Discover common methods like tensiometers and Time Domain Reflectometry (TDR) used for measuring soil moisture.
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