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Microbial decomposition of fuel oil after compost addition to soil
Author(s) -
Joergensen Rainer Georg,
Figge Rainer Martin,
Kupsch Lothar
Publication year - 1997
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19971600106
Subject(s) - compost , decomposition , environmental science , fuel oil , waste management , environmental chemistry , pulp and paper industry , agronomy , chemistry , engineering , biology , organic chemistry
The effects of adding straw and bark compost at different nitrogen levels to fuel oil contaminated soil was investigated using the CHCl 3 fumigation‐extraction method to measure the soil microbial biomass, The addition of these substrates decreased the percentage of extractable fuel oil, increased the percentage of fuel oil mineralized to CO 2 , but also increased the fraction of unrecovered fuel oil residues. The different N levels had no significant effects on fuel oil decomposition in the presence of the compost substrates. The addition of the compost substrates increased markedly the content of microbial biomass in contrast to the fuel oil addition which had no effect on the biomass level indicating toxic properties.