(25) ISO 14240-1 and 2 (1997). Soil quality – Determination of soil microbial biomass – Part 1: Substrate-induced respiration method. Part 2: Fumigation-extraction method.
(25) ISO 14240-1 and 2 (1997). Soil quality – Determination of soil microbial biomass – Part 1: Substrate-induced respiration method. Part 2: Fumigation-extraction method.