This document provides a method for determining the microbial biomass in soil using the fumigation-extraction technique. It outlines the procedures for sample collection, preparation, and analysis, ensuring consistency and reliability in the measurement process. The standard specifies the necessary equipment, reagents, and conditions for conducting the test, as well as the steps for data calculation and reporting. It is applicable to various types of soil and is intended for use by laboratories involved in environmental monitoring and research. The method described is widely recognized and used in the field of soil science for assessing soil health and fertility. The document is part of a series that addresses different aspects of soil quality assessment.
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