Oklahoma Cooperative Extension Service Soil Test Interpretation and Fertilizer Decision Support

Oklahoma Cooperative Extension Service
Soil Test Interpretation and Fertilizer Decision Support

Created: July, 1999 by Hailin Zhang and D. L. Nofziger,
Department of Plant and Soil Sciences
Oklahoma State University, Stillwater OK 74078.
Send email to haz@mail.pss.okstate.edu.

Last Modified: May, 2000 by Joanne Huang.