TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

LOW VOLUME IRRIGATION [2 records]

Record 1 2002-03-12

English

Subject field(s)
  • Drainage and Irrigation (Agric.)
DEF

A method used to place irrigation water near plants' roots through pipes or tubes. This reduces water evaporation and runoff, but may not be cost effective for all crops.

CONT

Low-pressure/low-volume irrigation [uses] irrigation systems that apply water directly, or very near to the soil surface, either above the ground or into the air, in discrete drops, continuous drops, small streams, mist, or sprays. These include drip systems, spray systems, jet systems, and bubbler systems.

OBS

Actually drip irrigation -- where water seeps from tubing or drip emitters -- is only one type of micro-irrigation. Other forms include bubblers, micro-sprinklers (which rotate), and micro-sprayers (which are stationary).

OBS

Low-pressure/low-volume irrigation. Also referred to as Micro or Trickle Irrigation.

OBS

The terms "drip", "trickle" and "spray" irrigation, common in many quarters in the last 15 years, have been supplanted by the term "micro irrigation", recently adopted by the American Society of Agricultural Engineers. Micro irrigation includes all methods of frequent water application, in small flow rates, on or below the soil surface. Ideally, the volume of water is applied directly to the root zone in quantities that approach the consumptive use of the plants.

Key term(s)
  • microirrigation
  • low volume irrigation
  • low pressure irrigation

French

Domaine(s)
  • Drainage et irrigation (Agriculture)
DEF

Méthode d'irrigation de cultures en ligne, dont l'objectif est de maintenir, à une humidité proche de la capacité au champ, une fraction du volume du sol utilisable, au moyen d'apports d'eau faibles mais continus ou fréquents, localisés au voisinage du pied des plantes. La diffusion de l'eau dans le sol ne se fait pas seulement de façon verticale, mais également latérale.

CONT

Cette technique utilise un réseau de distribution à la parcelle fixe et sous pression. [...] Elle comprend divers systèmes : - la micro-irrigation par goutte à goutte, avec localisation de l'eau par points, - la micro-irrigation par rampe perforée débitant dans une rigole d'infiltration, avec localisation de l'eau par lignes, - la micro-irrigation par mini-diffuseurs avec localisation de l'eau par petites surfaces, - la micro-irrigation par gaines perforées avec localisation de l'eau par bandes étroites.

OBS

Un réseau de micro-irrigation comprend de l'amont vers l'aval : - un point d'eau, - une installation de tête avec régulation de pression, injection d'engrais et filtration, - une canalisation principale alimentant un ou plusieurs postes, - dans chaque poste un porte-rampes qui alimente des rampes de distribution.

OBS

En raison de la réduction des débits unitaires utilisés, par rapport à ceux qui sont mis en service par les autres méthodes d'irrigation, on utilise le terme équivalent de micro-irrigation.

Spanish

Campo(s) temático(s)
  • Drenaje y riego (Agricultura)
Save record 1

Record 2 2001-12-24

English

Subject field(s)
  • Drainage and Irrigation (Agric.)
DEF

[A] system (drip, trickle, [or] micro sprinklers) [that] provides water in small volumes and generally provides water to plants with less waste than furrow irrigation.

CONT

A micro irrigation system delivers water to the crop using a network of mainlines, sub-mains and lateral lines with emission points spaced along their lengths.

CONT

Drip and trickle systems apply water through small holes in small diameter tubes placed on or below the surface of the field. Another type of system, micro sprinklers, supplies water from low-volume sprinkler heads located above the surface. Low flow systems are expensive and their use is generally limited to high-value crops such as vegetables, fruits, and vineyards.

Key term(s)
  • microirrigation
  • low volume irrigation
  • low pressure irrigation
  • low-flow system
  • low flow irrigation system

French

Domaine(s)
  • Drainage et irrigation (Agriculture)
CONT

Le système de micro-irrigation apporte en permanence de l'eau aux plants. Avec le système d'irrigation par aspersion, l'apport d'eau est intermittent; on le met en marche en général quand la quantité d'eau utile aux plantes a baissé de moitié.

Key term(s)
  • système de micro-irrigation localisée
  • système de microirrigation
  • système de micro irrigation

Spanish

Save record 2

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