Fluid and nutrient delivery system and associated methods

Details Fluid and nutrient delivery system and associated methods Fluid and nutrient delivery system and associated methods

A - Human Necessities

01

G

A01G 25/06 (2006.01) A01G 25/16 (2006.01)

Patent

CA 2679057

A system and method for efficiently delivering an aqueous solution to plants includes a microporous hydrophobic tubing coated with a hydrophilic polymer that has a distal portion positionable adjacent a root system of a plant and a lumen for channeling an aqueous solution from an inlet to the distal portion. The tubing along the distal portion has a porosity adapted for permitting a flow of the aqueous solution therethrough when acted upon by a surfactant root exudate generated by the roots due to water stress. A pressure regulating device is upstream of the tubing's inlet, and a reservoir adapted for holding the aqueous solution therein is situated in fluid communication with an upstream end of the pressure regulating device. Additional tubing can be provided for channeling a nutrient solution to the plant roots.

L'invention concerne un système et procédé de distribution efficace d'une solution aqueuse à des plantes comprenant un tubage hydrophobe microporeux revêtu d'un polymère hydrophile qui présente une partie distale pouvant être positionnée de manière adjacente à un système racinaire d'une plante et un lumen permettant le cheminement d'une solution aqueuse d'une entrée à la partie distale. Le tubage le long de la partie distale présente une porosité adaptée permettant un écoulement de la solution aqueuse, lorsqu'il est soumis à l'action d'un exsudat de racine d'agent de surface généré par les racines en raison de la force exercée par l'eau. Un dispositif de régulation de pression est agencé en amont de l'entrée du tubage, et un réservoir adapté pour retenir la solution aqueuse à l'intérieur est en communication de fluide avec une extrémité amont du dispositif de régulation de pression. Un tubage supplémentaire peut être agencé pour le cheminement d'une solution nutritive jusqu'aux racines de la plante.

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