Haiping X Su

US Patent:

7171912, Feb 6, 2007

Filed:

Mar 21, 2005

Appl. No.:

11/085589

Inventors:

Clyde Fraisse - Prosser WA, US
Haiping Su - Plymouth MN, US
Paul Joseph Harroun - Bloomington IL, US
Timothy A. Lindgren - Crystal MN, US

Assignee:

The Mosaic Company - Minnetonka MN

International Classification:

A01C 23/00

US Classification:

111118, 111900, 111903, 382110, 700 89, 700283

Abstract:

A map of site-specific amounts of a soil nutrient, to be applied in fertilizer to an agricultural field is created using a map of site-specific amounts of the soil nutrient needed to produce the maximum possible yield at the particular site. Subtracted from the site-specific amounts of nutrient needed are site-specific amounts of the nutrient currently existing in the field, thus producing the map of site-specific nutrient amounts to be added. The nutrient amounts may be added to the soil using the map and conventional variable-rate fertilizer application methods. In one embodiment, the amounts of the soil nutrient needed to produce the maximum possible yield at each site is created using a map of site-specific measures of biomass produced by the field in a past growing season or seasons, which in turn is created from a remotely sensed biomass image.

US Patent:

7343867, Mar 18, 2008

Filed:

Dec 21, 2006

Appl. No.:

11/643647

Inventors:

Clyde Fraisse - Prosser WA, US
Haiping Su - Plymouth MN, US
Paul Joseph Harroun - Bloomington IL, US
Timothy A. Lindgren - Crystal MN, US

Assignee:

The Mosaic Company - Minnetonka MN

International Classification:

A01C 23/00

US Classification:

111118, 111900, 111903, 382110, 700 89, 700283

Abstract:

A map of site-specific amounts of a soil nutrient, to be applied in fertilizer to an agricultural field is created using a map of site-specific amounts of the soil nutrient needed to produce the maximum possible yield at the particular site. Subtracted from the site-specific amounts of nutrient needed are site-specific amounts of the nutrient currently existing in the field, thus producing the map of site-specific nutrient amounts to be added. The nutrient amounts may be added to the soil using the map and conventional variable-rate fertilizer application methods. In one embodiment, the amounts of the soil nutrient needed to produce the maximum possible yield at each site is created using a map of site-specific measures of biomass produced by the field in a past growing season or seasons, which in turn is created from a remotely sensed biomass image.

US Patent:

20030019408, Jan 30, 2003

Filed:

Feb 26, 2002

Appl. No.:

10/083681

Inventors:

Clyde Fraisse - Prosser WA, US
Haiping Su - Plymouth MN, US
Paul Harroun - Bloomington IL, US
Timothy Lindgren - Crystal MN, US

International Classification:

A01C011/00

US Classification:

111/100000

Abstract:

A map of site-specific amounts of a soil nutrient, to be applied in fertilizer to an agricultural field is created using a map of site-specific amounts of the soil nutrient needed to produce the maximum possible yield at the particular site. Subtracted from the site-specific amounts of nutrient needed are site-specific amounts of the nutrient currently existing in the field, thus producing the map of site-specific nutrient amounts to be added. The nutrient amounts may be added to the soil using the map and conventional variable-rate fertilizer application methods. In one embodiment, the amounts of the soil nutrient needed to produce the maximum possible yield at each site is created using a map of site-specific measures of biomass produced by the field in a past growing season or seasons, which in turn is created from a remotely sensed biomass image.