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

Sahrawat, K L and Murthy, K V S and Shirisha, K and Wani, S P (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. ISSN 1532-2416

[img] PDF - Published Version
Restricted to ICRISAT users only

Download (112kB) | Request a copy

Abstract

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 our 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.

Item Type: Article
Divisions: RP-Resilient Dryland Systems
CRP: UNSPECIFIED
Uncontrolled Keywords: Analytical research support, extractable soil nutrients, fertility evaluation, internal soil standards, Soil testing, quality control, variability in soil test value
Subjects: Others > Soil Science
Depositing User: Mr Siva Shankar
Date Deposited: 17 Mar 2014 05:00
Last Modified: 23 Oct 2017 10:27
URI: http://oar.icrisat.org/id/eprint/7624
Official URL: http://dx.doi.org/10.1080/00103624.2013.874027
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: UNSPECIFIED
Links:

Actions (login required)

View Item View Item