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Our lab employs modern quality assurance program in its analytical process and is the only Louisiana laboratory that participates in the well-recognized North American Proficiency Test (NAPT) program and maintains an acceptable level of proficiency. LSU AgCenter
Soil Testing and Plant Analysis Laboratory
Analytical Performance
North American Proficiency Test
Quarterly Results for last three years.
|
Test Date |
Percent Acceptable (%) * | |
|
Soil Analysis |
Plant Analysis | |
|
1st Q, 2007 2nd Q, 2007 3rd Q, 2007 4th Q, 2007 1st Q, 2008 2nd Q, 2008 3rd Q, 2008 4th Q, 2008 1st Q, 2009 2nd Q, 2009 3rd Q, 2009 4th Q, 2009 |
95
94 98 99 99 99 NA 97 99 97 90 94 |
98
98 98 100 99 100 NA 100 100 100 98 98 |
* Based on a total of 115 and 39 analyses submitted for each round of proficiency soil and plant samples respectively. The NAPT program sets 4xMAD (Median Absolute Deviation) as its control limits for each analysis. The common acceptable proficiency level for routine commercial laboratories is 75% on a yearly basis.
The LSU AgCenter and the LSU College of Agriculture
