dc.date.accessioned | 2015-07-23T15:35:42Z | |
dc.date.available | 2015-07-23T15:35:42Z | |
dc.date.issued | 2003-08-05 | |
dc.identifier | pat6601341 | |
dc.identifier.uri | https://hdl.handle.net/11244/15374 | |
dc.description.abstract | A method for in-season fertilizer nitrogen application based on predicted yield potential and a nutrient response index. The inventive method includes the steps of: determining a nutrient response index for a field; determining the normalized difference vegetation index of an area to fertilize; determining a predicted crop yield for the area; determining an attainable crop yield for the area; determining nitrogen uptake for the vegetation within the area; and determining the amount of fertilizer nitrogen required by said vegetation. In one embodiment, the normalized difference vegetation index is determined by scanning an area to fertilize with a spectral reflectance sensor which provides reflectance values for red light and near infrared light. The normalized difference vegetation index (NDVI) is defined by: NDVI=(NIR-red)/(NIR+red) where "NIR" is the reflectance value for near infrared light and "red" is the reflectance value for red light. | |
dc.format | application/pdf | |
dc.format.extent | 13 pages | |
dc.language | en_US | |
dc.publisher | U.S. Patent and Trademark Office | |
dc.title | Process for In-season Fertilizer Nitrogen Application Based on Predicted Yield Potential | |
dc.type | text | |
osu.filename | pat6601341.pdf | |
osu.accesstype | Open Access | |
dc.type.genre | Patent | |
dc.contributor.inventor | Raun, William Robert | |
dc.contributor.inventor | Johnson, Gordon V. | |
dc.contributor.inventor | Solie, John B. | |
dc.contributor.inventor | Stone, Marvin L. | |
dc.identifier.patentID | 6,601,341 | |
dc.date.filed | 2001-07-24 | |
dc.contributor.assignee | Board of Regents/Oklahoma State University and the A & M Colleges | |
dc.subject.primaryusclass | 47/58.1R | |
dc.subject.otherusclasses | 47/48.5 | |
dc.subject.cpcclasses | A01C 21/007 (20130101) | |