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In agriculture, subirrigation, also known as seepage irrigation, is a method of irrigation where water is delivered to the plant root zone from below the soil surface and absorbed upwards. The excess may be collected for reuse. Subirrigation is used in growing field crops such as tomatoes, peppers, and sugar cane in areas with high water tables such as Florida and in commercial greenhouse operations.

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  • Subirrigation
  • Subirrigazione
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  • In agriculture, subirrigation, also known as seepage irrigation, is a method of irrigation where water is delivered to the plant root zone from below the soil surface and absorbed upwards. The excess may be collected for reuse. Subirrigation is used in growing field crops such as tomatoes, peppers, and sugar cane in areas with high water tables such as Florida and in commercial greenhouse operations.
  • La subirrigazione è un tipo di irrigazione dove l'acqua viene distribuita attraverso tubazioni sotterranee. In questo tipo di irrigazione, l'acqua circola in pressione nei tubi, fuoriesce attraverso apposite aperture e risale nel terreno per infiltrazione e capillarità, giungendo alle radici delle piante.
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  • In agriculture, subirrigation, also known as seepage irrigation, is a method of irrigation where water is delivered to the plant root zone from below the soil surface and absorbed upwards. The excess may be collected for reuse. Subirrigation is used in growing field crops such as tomatoes, peppers, and sugar cane in areas with high water tables such as Florida and in commercial greenhouse operations. Three basic types of subirrigation system are in general use for potted plants in greenhouses: 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). Greenhouse 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.
  • La subirrigazione è un tipo di irrigazione dove l'acqua viene distribuita attraverso tubazioni sotterranee. In questo tipo di irrigazione, l'acqua circola in pressione nei tubi, fuoriesce attraverso apposite aperture e risale nel terreno per infiltrazione e capillarità, giungendo alle radici delle piante. La subirrigazione ha il vantaggio di non ostacolare le lavorazioni superficiali del terreno e di non comportare perdite di acqua per evaporazione; di contro, ha un elevato costo d'impianto e ostacola le arature profonde. In pratica, è conveniente in presenza di colture pregiate e di terreni con sottosuolo poco permeabile.
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