Soil probe lubrication and effects on soil chemical composition

References

• Baker , D.G. , Kanwar , R.S. and Baker , J.L. 1989 . Sample volume effect on the determination of nitrate‐nitrogen in the soil profile . Trans. A.S.A.E. , 32 : 934 – 938 .
   Google Scholar
• Greweling , T. and Peech , M. 1960 . Chemical Soil Tests . Cornell University Agric. Exp. Stn. Bull. , : 960
   Google Scholar
• Hassen , H.M. , Warrich , A.W. and Amoozegar‐Fard , A. 1983 . Sampling volume effect on determining salt in a soil profile . Soil Sci. Soc. Amer. J. , 47 : 1265 – 1267 .
   Web of Science ®Google Scholar
• Keeney , D.R. and Nelson , D.W. 1982 . “ Inorganic nitrogen ” . In Methods of Soil Analysis Part 2. Chemical and Microbiological Properties , 2nd edition , Agronomy Monograph 9 Edited by: Page , A.L. 643 – 698 . Madison , WI : American Society of Agronomy .
   Google Scholar
• Olsen , S.R. and Sommers , L.E. 1982 . “ Phosphorus ” . In Methods of Soil Analysis Part 2. Chemical and Microgiological Properties , 2nd Edition , Agronomy Monograph No. 9 Edited by: Page , A.L. 403 – 430 . Madison , WI : American Society of Agronomy .
   Google Scholar
• SAS Institute . 1985 . SAS Procedures Guide for Personal Computers , 6 edition , Cary , NC : SAS Institute, Inc. . Version
   Google Scholar
• University of Wyoming Agricultural Experiment Station Journal Paper No. JA‐1726.
   Google Scholar
• Assistant Professor/Extension Soil Fertility Specialist
   Google Scholar
• Research Associate.
   Google Scholar
• Associate Professor.
   Google Scholar