Adenosine triphosphate and microbial biomass in soil

Relationship between the amount of organic material applied and soil biomass content

“…The comparison of the content of biomass C among the 4 fields suggests that the content of biomass C is proportional to the content of soil total C. This finding is consistent with the observations reported in European and Australian soils (Jenkinson and Powlson 1976;Anderson and Domsch 1978;Jenkinson et al 1979). In contrast to the data on biomass C, the ratio of biomass C to the total C was lower in the field with a high total C content than in the field with a low total C content.…”

“…The values of the soil biomass measured by the DMM in the soil amended with organic material were greater than those in the soil amended with inorganic fertilizer in all the fields (not determined in the Futaba field). ATP content and soil respiration rate, which are good indices of the soil biomass (Jenkinson et al 1979;Sakamoto and Yoshida 1988), in the soil with organic material application were also higher than those in the non-amended soil in all the fields. However, the ATP contents of the soils amended with sewage sludge compost and swine feces in the Ibaraki field were lower than those of the non-amended soil.…”

Rimsulfuron in soil: Effects on microbiological properties under varying soil conditions

“…Non-fumigated samples were extracted under the same conditions. Microbiological biomass carbon (MBC) was calculated by expression: MBC = C extracted x 0.33 (Jenkinson et al, 1979), where C was extracted from fumigated and non-fumigated samples. The results are presented in μg C g -1 soil.…”

Antarctic Dry Valley mineral soils contain unexpectedly high levels of microbial biomass

“…ATP analysis has been used to measure soil microbial activity (Paul and Johnson 1977) and microbial biomass (Jenkinson et al 1979). Although the technique has suffered from the vagaries of the ATP extraction procedures (Sparling and Eiland 1983) and possible variations in cellular ATP content (Fairbanks et al 1984), the recent development of efficient lysis reagents produced and marketed for the food industry (Siragusa et al 1996;Davidson et al 1999;Zwartkruis et al 1999) offers improved sensitivity and assay reliability.…”