title: [Seasonal variations of soil microbial biomass, respiration rate and CH4 emission in black earth rice fields].
abstract: The measurements of soil microbial biomass C, respiration rate and CH4 emissions during one rice growth period in black earth rice fields showed that the soil microbial biomass C and respiration rate were depressed significantly by the application of slow-releasing urea at the early stage of rice growth period (P < 0.05), but almost not affected by intermittent irrigation. The CH4 emission was decreased by 32.5% in the intermittent irrigation treatments, but not significantly affected by the application of slow-releasing urea, compared to the control. It was significantly related to soil microbial biomass C in slow-releasing urea treatments.
authors.affiliation: Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. liangwei76@163.com
authors.forename: Wei
authors.initials: W
authors.lastname: Liang
authors.forename: Jin
authors.initials: J
authors.lastname: Yue
authors.forename: Jie
authors.initials: J
authors.lastname: Wu
authors.forename: Yi
authors.initials: Y
authors.lastname: Shi
authors.forename: Guohong
authors.initials: G
authors.lastname: Huang
authors.forename: Zhanbei
authors.initials: Z
authors.lastname: Liang
mesh_terms: D018533:Biomass; D005308:Fertilizers; D008697:Methane / Q000032:analysis*; D012275:Oryza / Q000254:growth & development*; D010101:Oxygen Consumption; D012621:Seasons; D012988:Soil Microbiology
chemical_list: D005308:Fertilizers; D008697:Methane