AOAC OMB Nomination Review (June 12, 2019)

K ARIUKI , 9 OF 15

 Solicited collaboration from National and International Soil Testing Labs  Analyzed data for Mehlich 3 analytes reproducibility and repeatability among labs using Horowitz model

 Assisted the Dr. Zhang in laboratory and field studies establishment  Conducted preliminary soil testing for location identification  Studied implementation and management

 Statistically analyzed and summarized lab analytical data



Communicated findings

 Journal Publication  Conference presentations  Local workshops presentations

Plant and Soil Sci. Dept, Oklahoma State University, Stillwater, OK

Graduate Research Assistant (Ph.D)

2004-2006

Supervisor: Dr. Hailin Zhang

Dissertation Projects 

Hard red winter wheat cultivar response to a pH and aluminum concentration gradient  Spatial variability and soil sampling in a grazed pasture  The response of dual-purpose winter wheat to phosphorus rates and application methods in an acid soil

Responsibilities

 Laboratory and field experiments establishment and management  Personnel management  Plant and soils samples laboratory analysis and interpretation  Data analysis and results presentation

Plant and Soil Sci. Dept, Oklahoma State University, Stillwater Oklahoma

Graduate Research Assistant (MS) Supervisor: Dr. Eugene Krenzer (retired) Thesis Project

2002-2003

 Phosphorus Requirement for Dual-Purpose Wheat in the Southern Plains of the U.S. Responsibilities

 Analyzed field soil samples for essential nutrients and organic carbon  Designed plot layouts and applied experimental treatments