[Seasonal variations of soil microbial biomass, respiration rate and CH4 emission in black earth rice fields].
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.
Liang
Wei
W
Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. liangwei76@163.com
Yue
Jin
J
Wu
Jie
J
Shi
Yi
Y
Huang
Guohong
G
Liang
Zhanbei
Z
D018533:Biomass; D005308:Fertilizers; D008697:Methane / Q000032:analysis*; D012275:Oryza / Q000254:growth & development*; D010101:Oxygen Consumption; D012621:Seasons; D012988:Soil Microbiology
D005308:Fertilizers; D008697:Methane