David M Doherty

US Patent:

56728140, Sep 30, 1997

Filed:

May 20, 1996

Appl. No.:

8/650191

Inventors:

David L. Doherty - Leawood KS

International Classification:

G01N 1508
G01N 3324

US Classification:

73 38

Abstract:

An improved soil analysis is provided which provides accurate data representative of actual physical conditions of the soil. Preferably, the method involves first obtaining a core sample of soil having an essentially undisturbed naturally occurring compaction and stratification and subjecting at least a portion of this undisturbed core sample to one or more physical tests such as water permeability, water holding capacity and porosity tests. Thereafter, the sample portion is divided into vertically aligned strata and the latter are individually tested for organic content, silt and clay content and sand content.

US Patent:

56683065, Sep 16, 1997

Filed:

May 17, 1996

Appl. No.:

8/649792

Inventors:

David L. Doherty - Leawood KS

International Classification:

G01N 1508
G01N 1510
G01N 3324

US Classification:

73 38

Abstract:

An improved soil analysis is provided which provides accurate data representative of actual physical conditions of the soil. Preferably, the method involves first obtaining a core sample of soil having an essentially undisturbed naturally occurring compaction and stratification and subjecting at least a portion of this undisturbed core sample to one or more physical tests such as water permeability, water holding capacity and porosity tests. Thereafter, the sample portion is divided into vertically aligned strata and the latter are individually tested for organic content, silt and clay content and sand content.

US Patent:

56728131, Sep 30, 1997

Filed:

May 20, 1996

Appl. No.:

8/650187

Inventors:

David L. Doherty - Leawood KS

International Classification:

G01N 1508
G01N 3324

US Classification:

73 38

Abstract:

An improved soil analysis is provided which provides accurate data representative of actual physical conditions of the soil. Preferably, the method involves first obtaining a core sample of soil having an essentially undisturbed naturally occurring compaction and stratification and subjecting at least a portion of this undisturbed core sample to one or more physical tests such as water permeability, water holding capacity and porosity tests. Thereafter, the sample portion is divided into vertically aligned strata and the latter are individually tested for organic content, silt and clay content and sand content.