Facts about Irrigation
Subirrigation also sometimes called seepage irrigation has been used for many years in field crops in areas with high water tables.
Each zone has a solenoid valve on it that is controlled via wire by an Irrigation Controller.
Drip irrigation, also known as trickle irrigation, functions as its name suggests.
Localized irrigation is a system where water is distributed under low pressure through a piped network, in a pre-determined pattern, and applied as a small discharge to each plant or adjacent to it.
About 68 percent of the area equipped for irrigation is located in Asia, 17 percent in America, 9 percent in Europe, 5 percent in Africa and 1 percent in Oceania.
A special form of irrigation using surface water is spate irrigation, also called floodwater harvesting.
The Irrigation Controller is either a mechanical or electrical device that signals a zone to turn on at a specific time and keeps it on for a specified amount of time.
A system utilizing sprinklers, sprays, or guns mounted overhead on permanently installed risers is often referred to as a solid-set irrigation system.
Various types of irrigation techniques differ in how the water obtained from the source is distributed within the field.
Drip irrigation, spray or micro-sprinkler irrigation and bubbler irrigation belong to this category of irrigation methods.
Most commercial and residential irrigation systems are "in ground" systems, which means that everything is buried in the ground.
Sophisticated irrigation and storage systems were developed by the Indus Valley Civilization in Pakistan and North India, including the reservoirs at Girnar in 3000 B.C.E.
A zone is a single Irrigation Valve and one or a group of sprinklers that are connected by pipes.
The water was used for public works of providing water for urban residential quarters and palace gardens, but mostly for irrigation of farmland canals and channels in the fields.
Subsurface drip irrigation has been used successfully on lawns, but it is more expensive than a more traditional sprinkler system.
of the Warring States period, both of whom worked on large irrigation projects.
Spate irrigation areas are in particular located in semi-arid or arid, mountainous regions.
The Qanats, developed in ancient Persia in about 800 B.C.E., are among the oldest known irrigation methods still in use today.
Surface irrigation can be subdivided into furrow, borderstrip or basin irrigation.
Where water levels from the irrigation source permit, the levels are controlled by dikes, usually plugged by soil.
Sub-irrigation in greenhouses requires fairly sophisticated, expensive equipment and management.
Smaller irrigation areas are spread across almost all populated parts of the world.
Large scale agriculture was practiced and an extensive network of canals was used for the purpose of irrigation.
Drip irrigation methods range from very high-tech and computerized to low-tech and labor-intensive.
Here, a 'stairs' is made through the use of ground level differences which helps to decrease water evaporation and also distributes the water to all patches (sort of irrigation).
Irrigation using watering cans is to be found for example in peri-urban agriculture around large cities in some African countries.
Irrigation is an artificial application of water to the soil, usually to assist with the growth of crops.
The pipes from the water source up to the irrigation valves are called "mainlines," and the lines from the valves to the sprinklers are called "lateral lines."
Irrigation is also a term used in the medical/dental fields and refers to flushing and washing out anything with water or another liquid.
Sub-irrigation is also used in commercial greenhouse production, usually for potted plants.
Guns are used not only for irrigation, but also for industrial applications such as dust suppression and logging.
Irrigation is often studied together with drainage, which is the natural or artificial removal of surface and sub-surface water from a given area.
Irrigation Systems are divided into zones because there is usually not enough pressure and available flow to run sprinklers for an entire yard or sports field at once.
Sources of irrigation water can be groundwater extracted from springs or by using wells, surface water withdrawn from rivers, lakes or reservoirs or non-conventional sources like treated wastewater, desalinated water or drainage water.
When a zone comes on, the water flows through the lateral lines and ultimately ends up at the irrigation Sprinkler heads.