In agriculture, subirrigation is a method of irrigation used in commercial greenhouse operations. Water is delivered from below, absorbed upwards, and the excess collected for reuse. Subirrigation is usually used with potted plants. High-altitude aerial view of irrigation in the Heart of the Sahara Irrigation (in agriculture) is the replacement or supplementation of rainfall with water from another source in order to grow crops. ... This article is about the business concept; Commerce is also the name of several places in the United States. ... A greenhouse in Saint Paul, Minnesota. ... Water (from the Old English word wæter; c. ... Absorption has a number of meanings: In physics absorption is a process in which particles of some sort encounter another material and are taken up by or even disappear in it. ... This article needs to be cleaned up to conform to a higher standard of quality. ...

Three basic types of subirrigation system are in general use: ebb-and-flow (bench-mounted enclosures holding pots are filled and then drained); trough (water is flowed through bench-mounted, slightly sloping enclosures containing pots); and flooded floor (special sloped concrete flooring is flooded and drained). Wikimedia Commons has more media related to: Benches Bench may refer to several things: A long backless seat, typically used for sitting at an outdoor table for casual eating. ... Look up Slope in Wiktionary, the free dictionary In mathematics, the slope or the gradient of a straight line (within a Cartesian coordinate system) is a measure for the steepness of the line relative to the horizontal axis. ... Look up Flood in Wiktionary, the free dictionary A flood (in Old English flod, a word common to Teutonic languages; compare German Flut, Dutch vloed from the same root as is seen in flow, float) is an overflow of water, an expanse of water submerging land, a deluge. ...

Subirrigation has been growing in popularity since the 1990s. Advantages are water and nutrient conservation, and labor-saving. The outfitting cost is relatively high. Potential problems, such as the possibility of increased presence of disease in recycle water, have only begun to be investigated. The 1990s refers to the years 1990 to 1999; the last decade of the 20th Century, but in an economical sense The Nineties is often considered to span from the fall of the Berlin Wall in November 1989 to the September 11 attacks in 2001. ... Nutrients and the body A nutrient is any element or compound necessary for or contributing to an organisms metabolism, growth, or other functioning. ... Conservation may refer to the following: Conservation ethic in relation to preserving ecosystems Conservationist Conservation movement Conservation ecology Conservation law of physics Conservation of energy Conservation of mass Conservation in genetics Conservation in psychology Prolonging the material integrity of cultural and artistic objects Art conservation Architectural conservation or immovable object... In economics, business, and accounting, a cost is a price paid, or otherwise associated with, a commercial event or economic transaction. ... Look up Problem on Wiktionary, the free dictionary Problem refers to a situation, condition, or issue that is unresolved or undesired. ... A disease is any abnormal condition of the body or mind that causes discomfort, dysfunction, or distress to the person affected or those in contact with the person. ... The international symbol for recycling. ...