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Quality Control in Soil Testing Using the Internal Standards: Temporal Variability in Organic Carbon and Extractable Nutrient Elements

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Title Quality Control in Soil Testing Using the Internal Standards: Temporal Variability in Organic Carbon and Extractable Nutrient Elements
 
Creator Sahrawat, Kanwar Lal
 
Contributor Kadiyala, M.D.M.
Shirisha, Kasthuri
Wani, Suhas
 
Subject analytical research support
extractable soil nutrients
fertility evaluation
internal soil standards
variability in soil test value
quality control
 
Description Internal soil standards are used in an analytical laboratory as one of the tools for providing feedback on the quality of soil testing service provided. The objective of this study is to provide results on the temporal variability in soil test values of the internal soil standards used for soil organic carbon (C), extractable phosphorus (P), potassium (K), sulfur (S), boron (B) and zinc (Zn) determination in the ICRISAT analytical service laboratory. The range, mean, standard deviation (SD) and coefficient of variation (CV) values for the internal standards for various fertility parameters varied according to the parameter, and were generally of acceptable quality, except for the extractable P (Olsen-P) in the lower range of extractable P. Our results show that the use of internal soil standards in an analytical service laboratory is a simple, inexpensive and effective tool for providing a feedback on the quality of soil testing service.
 
Date 2014-03-10
2017-01-09T21:22:32Z
2017-01-09T21:22:32Z
 
Type Journal Article
 
Identifier https://mel.cgiar.org/reporting/download/hash/VHdPnFxy
Kanwar Lal Sahrawat, M. D. M. Kadiyala, Kasthuri Shirisha, Suhas Wani. (10/3/2014). Quality Control in Soil Testing Using the Internal Standards: Temporal Variability in Organic Carbon and Extractable Nutrient Elements. Communications in Soil Science and Plant Analysis, 45, pp. 1162-1165.
https://hdl.handle.net/20.500.11766/5391
Limited access
 
Language en
 
Rights CC-BY-NC-4.0
 
Format PDF
 
Publisher Taylor & Francis
 
Source Communications in Soil Science and Plant Analysis;45,(2014) Pagination 1162,1165