Contact

Dr. Blake M. Onken
Owner

Missouri City, TX 77459-7083 UNITED STATES

Membership

• Member Emeritus
• American Society of Agronomy, 37 Years
• Crop Science Society of America, 15 Years
• Soil Science Society of America, 37 Years

Past Membership

Certifications Held

• Certified Professional Soil Scientist

Education History

• Doctor of Philosophy (PhD), Ohio State University, 1992, Agronomy
  
• Master of Science (MS), Texas A&M University College Station, 1988, Soil Science
  
• Bachelor of Science (BS), Texas A&M University College Station, 1983, Chemistry
  

Communities

ASA Agronomic Production Systems Section
• ASA Crop Irrigation Strategies and Management Community
  
• ASA Nutrient Management Professionals Community
  
ASA Environmental Quality Section
• ASA Nutrients and Environmental Quality Community
  
• ASA Animal Agriculture and the Environment Community
  

Divisions of Interest

• I Choose to Not Select a CSSA Division
  
• SSSA Soil Fertility & Plant Nutrition Division
  
• SSSA Nutrient Management & Soil & Plant Analysis Division
  
• SSSA Practicing Professional Soil Scientists Division
  

• SSSA Soil Chemistry Division
  
• SSSA Soil Mineralogy Division
  
• SSSA Soils & Environmental Quality Division
  

Committee Service

• A - Nebraska CCA Board, Member, 2018-01-01 - 2020-12-31
  
• A - Nebraska CCA Board, Member, 2015-01-01 - 2017-12-31
  

Areas of Expertise

• Ground Water Quality
  
• Soil Chemistry
  
• Soil Mineralogy