Application of surfactants to crop root zone to improve potato yield and reduce soil nitrate leaching
CA 2369498 A1 · Owner: Cooley, Eric Thomas · Inventors: Cooley, Eric Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
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.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 22, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 22, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.