Application of surfactants to crop root zone to improve...

C - Chemistry – Metallurgy – 09 – K

Patent

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C09K 17/14 (2006.01) C05G 3/06 (2006.01)

Patent

CA 2369498

A preferred technique for increasing potato crop yields and/or minimizing nitrate leaching of potato crop acreage involves the application of surfactant at planting to the soil adjacent a seed potato. In an alternative method of the present invention, surfactant is applied after planting to the top or shoulder of the hill in which a potato plant is growing. The improved potato crop yields of the present invention are believed to result of the maintenance of soil moisture levels near the potato plant root zone and/or the prevention of nitrogen and other nutrient-leaching from the potato plant root zone.

L'invention concerne une technique permettant d'augmenter le rendement des pommes de terre et/ou de réduire le lessivage des nitrates de la zone de surface des cultures de pommes de terre, qui consiste à appliquer au sol, au moment de la plantation, un surfactant, de façon adjacente à un plant de pomme de terre. Selon un autre mode de réalisation de l'invention, le surfactant est appliqué après la plantation, dans une zone située en haut ou sur un épaulement d'une colline, dans laquelle pousse un plant de pommes de terre. Le rendement amélioré des pommes de terre selon l'invention est censé être dû au maintien d'un certain degré d'humidité du sol, à proximité de la zone des racines des plants de pommes de terre et/ou à l'élimination du lessivage de l'azote et d'autres nutriments dans la zone des racines du plant de pommes de terre.

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