The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2007
Filed:
Mar. 16, 2004
William R. Raun, Stillwater, OK (US);
Gordon V. Johnson, Stillwater, OK (US);
John B. Solie, Stillwater, OK (US);
Marvin L. Stone, Stillwater, OK (US);
Kyle Freeman, Stillwater, OK (US);
William R. Raun, Stillwater, OK (US);
Gordon V. Johnson, Stillwater, OK (US);
John B. Solie, Stillwater, OK (US);
Marvin L. Stone, Stillwater, OK (US);
Kyle Freeman, Stillwater, OK (US);
The Board of Regents for Oklahoma State University, Stillwater, OK (US);
Abstract
A method for in-season macro and micronutrient application based on predicted yield potential, coefficient of variation, 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 (NDVI) of an area to fertilize; determining the coefficient of variation of NDVI over a plot; determining a predicted crop yield for the area without additional nutrient; determining an attainable crop yield for the area with additional nutrient; determining the nutrient requirement for the area as the difference between the nutrient removal at the attainable yield minus the nutrient removal at the predicted yield, adjusted by the efficiency of nutrient utilization in the particular crop as indicated by the coefficient of variation.