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  Encyclopedia of Keywords > Information > Science > Industry > Agriculture > Irrigation   Michael Charnine

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  1. Irrigation is an ancient idea.
  2. Irrigation is a system extending across many technical and non-technical disciplines. (Web site)
  3. Irrigation is a key input for agriculture in California.
  4. Irrigation is the artificial application of water to the soil.
  5. Irrigation is an art that has been practised from very early times.


  1. Irrigation coverage in this region is as low as 4% of the arable land.
  2. For each furrow, the cross-sectional geometry should be measured at two to three stations before and after the irrigation. (Web site)
  3. In those rural areas where electricity is available, tube wells with electric pumps are becoming an important irrigation device.
  4. We attribute the usefulness of water-meadow irrigation, then,. (Web site)
  5. For more information on irrigation, visit (Web site)


  1. The built irrigation systems, dykes, and canals for better farming. (Web site)
  2. These were replaced by hydraulic systems ( T-L Irrigation) and electric motor driven systems ( Lindsay, Reinke, Valley, Zimmatic). (Web site)
  3. The soil moisture reservoir transforms this continuous demand into a periodic one which the irrigation system can service. (Web site)
  4. The designer, evaluator, or manager of irrigation systems should be aware of the broader setting in which irrigated agriculture functions. (Web site)
  5. Figure 6. Irrigation starter tray for perlite or rockwool production systems. (Web site)


  1. Irrigation interval: From the irrigation depth, the interval is calculated.
  2. Irrometers at the 6 inch and 12 inch depth in the mulched bed are recommended as an aid in determining irrigation needs. (Web site)


  1. Subsurface drip irrigation has been used successfully on lawns, but it is more expensive than a more traditional sprinkler system.
  2. As the tubing is wound on the drum powered by the irrigation water or a small gas engine, the sprinkler is pulled across the field. (Web site)


  1. Its main purpose of pumping water for irrigation was postponed during WWII in favor of electrical power generation that was used for the war effort.
  2. A pre-measured volume, about 80-90 percent of the infiltrometer capacity of water similar to the irrigation water, is added quickly to the infiltrometer. (Web site)
  3. For some years now, many Australian irrigation farmers have successfully used capacitance probes to monitor soil water content. (Web site)
  4. Irrigation regimes consisted of a combination of soil water potentials as thresholds for initiating irrigations and water application rates.
  5. As of 1985, Malheur County growers were not yet using measurements of soil water or estimates of crop evapotranspiration for objective irrigation scheduling.


  1. The pristine rivers that come straight to us from the surrounding forest, flow by the gardens as our irrigation source, if necessary. (Web site)
  2. More than 450,000 people live in the Fox River watershed and use it for drinking water, irrigation for agriculture,wastewater disposal, fishing and boating.


  1. The station is a leader for drip irrigation for onions and automated control of drip irrigated onions.
  2. In Victoria and NSW 12-19% of irrigated land is affected by salinity, with 6.5% of Australia's irrigated areas effected from irrigation salinity.


  1. Fig. 3 will serve to explain this system of irrigation, the firm lines representing canals, the dotted lines embankments.
  2. The farmers used their irrigation canals to run water to the lands not reached by the Nile. (Web site)


  1. Plastic mulch, floating row covers, tunnels, irrigation, artificial windbreak material, mechanical mulch layers.
  2. Plastic film mulches, drip irrigation, row covers, low tunnels, and high tunnels or hoophouses, help to protect crops from the weather.
  3. Mid to late spring the following year, he plows the cover crop in and puts a solanaceous crop in with black plastic and trickle irrigation.


  1. Improper irrigation of farm land can wick the sodium, calcium, and magnesium from the soil and water to the surface. (Web site)
  2. Infiltration is the most important process in surface irrigation. (Web site)
  3. Energy requirements for surface irrigation systems come from gravity. (Web site)
  4. A special form of irrigation using surface water is spate irrigation, also called floodwater harvesting. (Web site)
  5. The term 'surface irrigation' refers to a broad class of irrigation methods in which water is distributed over the field by overland flow. (Web site)

Irrigation Water

  1. Soil and citrus tree nutrition are affected by salinized irrigation water.
  2. Mean leaf Cl and Na contents by irrigation water Salinity for each rootstock.
  3. As the salinity of irrigation water increases, the availability of water to plants decreases and the result is lowered productivity.


  1. In two decades, Ming reform achieved impressive targets in irrigation, land restoration, reforestation and flood control. (Web site)
  2. Primitive cultivators could not establish themselves in large river valleys subject to lengthy floods and requiring protective dams, drainage, or irrigation.
  3. Simulation results showed greater impact of sodic irrigation under flood than sprinkler irrigation.
  4. It is often called flood irrigation when the irrigation results in flooding or near flooding of the cultivated land. (Web site)

Plastic Mulch

  1. Drip irrigation is often required, with drip tape laid under the plastic, as plastic mulch is impermeable to water.
  2. Never use plastic mulch without irrigation.
  3. Other systems include plasticulture (plastic mulch combined with drip irrigation) and organic mulches. (Web site)
  4. Staked on plastic mulch: This is typically accompanied by drip irrigation and tensiometers to monitor soil moisture.


  1. Drip irrigation, landscape fabric, greenhouse frames, poly covering, floating rowcover, other supplies.
  2. Computers can operate hundreds of devices within a greenhouse (vents, heaters, fans, hot water mixing valves, irrigation valves, curtains.

Root Zone

  1. That is the amount of water (expressed as a fraction of the irrigation water) one must add (extra) to leach the salts out of the root zone.
  2. Relatively large volumes of applied irrigation water percolate through the root zone and become a drainage or groundwater flow. (Web site)


  1. Eb4 parrls) Euphrates, like that of Egypt, depended largely on See also: IRRIGATION (Lat. (Web site)
  2. Evidence exists of irrigation in Mesopotamia and Egypt as far back as the 6th millennium BC. (Web site)


  1. Irrigation without drainage raises soil salinity, which reduces crop yields.
  2. Fields requiring specialized knowledge of agricultural engineers includes, but not limited to Irrigation, Drainage, Conservation, and Sanitary Engineering.


  1. I live half way down a slope where people use a considerable amount of irrigation water both above and below me.
  2. It is a flush irrigation system that moves water down the slope in a shallow flush between two small levees or dikes (borders). (Web site)

Irrigation Projects

  1. The Columbia Basin Project is an irrigation project in Central Washington, USA. It provides water for over 600,000 acres (2,400 km--) of agriculture.
  2. In the past, our state and federal governments have been partners on Columbia Basin irrigation projects. (Web site)


  1. Overall, manure rate had no effect on increased ponded infiltration under both dryland and irrigation.
  2. Pore-size distribution of a clay loam soil (1-cm depth) for control and manured treatments under dryland and irrigation in 1997 and 1998.
  3. Sommerfeldt and Chang (1987) reported a significant decrease in PAW for the 0- to 15-cm depth under dryland and irrigation after 12 yr of manure application.


  1. They require five months of warm weather, and an annual rainfall of 500 to 1000 mm (20 to 40 in) or the equivalent in irrigation water.
  2. Little rainfall, makes irrigation systems necessary. (Web site)
  3. In general, Chinese cabbage can be grown in temperate and tropical climates, given adequate rainfall or irrigation.


  1. A system utilizing sprinklers, sprays, or guns mounted overhead on permanently installed risers is often referred to as a solid-set irrigation system. (Web site)
  2. Overhead irrigation and fertigation can be used by perforating the plastic. (Web site)

Flows Through

  1. The Columbia channel no longer flows through the Grand Coulee, which, after the creation of Grand Coulee Dam, is now an irrigation canal. (Web site)
  2. When a zone comes on, the water flows through the lateral lines and ultimately ends up at the irrigation Sprinkler heads. (Web site)

Irrigation Equipment

  1. There are new types of irrigation equipment available which are both inexpensive and water-efficient.
  2. Source of soil moisture sensors, probes, tensiometers, and other irrigation equipment.


  1. Water infiltration rate in soils APPLICATIONS AGRICULTURE Efficiency of irrigation and drainage.
  2. H . 2001. Improving the efficiency and flexibility of contour irrigation design. (Web site)


  1. Aeroponics is an improvement upon drip irrigation techniques that have been used for decades by traditional agriculturalists.
  2. But drip irrigation can also be as low-tech as a porous clay vessel sunk into the soil and occasionally filled from a hose or bucket.
  3. Ponding is the more common term for basin irrigation. (Web site)
  4. The first is the irrigation requirement of the crop, or its evapotranspiration and leaching needs. (Web site)
  5. While dams of the Columbia Basin Project inundated many wetlands, new ones were created from irrigation runoff.


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  Originally created: September 06, 2007.
  Links checked: July 14, 2013.
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