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BESOINS EAU IRRIGATION [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-04-10

English

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

The amount of irrigation water required to supply the consumptive use requirement plus the amount lost by runoff and deep percolation losses.

OBS

Irrigation requirement is also referred to as "irrigation need" or "grant-in-aid" and represents the difference between possible water expenditure and actual water income.

French

Domaine(s)
  • Irrigation (Génie civil)
  • Drainage et irrigation (Agriculture)
CONT

Calcul du besoin en eau d'irrigation des plantes. La mesure des besoins en eau d'irrigation est égale à la différence entre la consommation en eau des plantes (KxE.T.p.) et les participations des pluies et du sol aux diverses profondeurs d'enracinement : besoin en eau d'irrigation = consommation (KxE.T.p.) - hauteur des pluies + réserve utile du sol.

CONT

Pour une exploitation de 3 ha, avec des besoins en eau d'irrigation de 100 mm, le volume d'eau à distribuer pour l'ensemble de l'exploitation devra être de : 10 x 100 x 3 = 3 000 m³.

Key term(s)
  • besoins en eau d'irrigation

Spanish

Campo(s) temático(s)
  • Riego (Ingeniería civil)
  • Drenaje y riego (Agricultura)
DEF

Cantidad de agua con que hay que suplementar la precipitación para lograr una producción agrícola óptima.

OBS

La necesidad de agua de riego será al menos igual a las necesidades hídricas del cultivo, siendo mayor cuando existen pérdidas (escorrentía, percolación, falta de uniformidad en la distribución, etcétera), y menor cuando la planta puede satisfacer sus necesidades hídricas a partir de otros recursos (lluvia, reservas de agua en el suelo, etcétera).

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