Size and Activity of the Soil Microbial Biomass and Soil Enzyme Activity in Long-Term Field Experiments

Cheng Hu; Zhiping Cao
January 2007
World Journal of Agricultural Sciences;Jan2007, Vol. 3 Issue 1, p63
Academic Journal
Soil microbial biomass carbon, microbial respiration and soil enzyme activity were estimated from six different manure treatments: a) effective microorganism (EM) compost 15 t ha-1 (EM1), b) traditional compost 15 t ha-1 (TC1), c) EM compost 7.5 t ha-1 (EM2), d) traditional compost 7.5 t ha-1 (TC2), e) chemical fertilizer (CF), f) control (no any manure, CK). The experimental results showed that soil microbial biomass C, microbial respiration rate and enzyme activity in compost system were significantly higher than in CF system and CK system. Alkaline phosphatase and urease activity in CF system were significantly higher than in CK system. The microbial biomass C and microbial respiration rate in treatments followed the order: CK


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