Biodegradable polymeric water retention concentrate

C - Chemistry – Metallurgy – 09 – K

Patent

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Details

C09K 17/18 (2006.01) C09K 17/40 (2006.01)

Patent

CA 2568887

The invention concerns a composition which increases water retention and water absorption in a plant media, such as soil. In particular, the invention relates to a biodegradable polymeric water retention concentrate that when diluted and applied to various plant media improve water, fertilizer and nutrient retention in plant media with no root uptake or phyto-toxic effects. The composition includes a polyacrylamide (PAM), a water softener, a surfactant and nutrients. The composition can be delivered to the plant media through existing irrigation systems and nutrient/fertilizer delivery systems, such as venturi, fertigator, separate mixing tank or any induction system.

La présente invention concerne une composition qui améliore la rétention d'eau et l'absorption d'eau dans un milieu végétal, tel que la terre. Cette invention se rapporte notamment à un concentrat de rétention d eau polymère biodégradable qui, une fois dilué et appliqué sur divers milieux végétaux améliore la rétention de l'eau, des engrais et de éléments nutritifs dans les milieux végétaux sans reprise de racine ni effets phytotoxiques. La composition renferme un polyacrylamide (PAM), un agent anti-calcaire, un tensioactif et des éléments nutritifs. La composition peut être apportée aux milieux végétaux par des systèmes d'irrigation existants et des systèmes d'apport d'éléments nutritifs/engrais, tels qu'un dispositif venturi, un dispositif de fertigation, une cuve de mélange séparée ou tout système d'induction.

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