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《Journal of Liaoning Technical University》 2007-05
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Nitrogen mineralization potentials of meadow brown soil in different fertilization practice

LU Cai-yan1,2,NIU Ming-fen3,CHEN Xin1,SHI Yi1,SHI Xian-feng4(1.Key Laboratory of Terrestrial Ecological Process,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China;2.Graduate school of Chinese Academy of Sciences,Beijing 100039,China;3.School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang 110168,China;4.Watercourse Department,Water authority of Qingyuan Manzu autonomous County,Qingyuan 113300,China)  
Adopting stanford mineralization rate method,the tested soils with different fertilization systems were aerobic incubated to study the nitrogen mineralization potentials(N0) and N-supplying capacity of soil.The results show that the N0 and N-supplying capacity of tested soil are significantly different with fertilization system.Compared with CK,the N-supplying capacity of soil in treatments chemical NPK and organic manure was increased by 42.27% and 49.53%,that of soil with chemical fertilizer and organic manure combination was increased 81.76%.The long-term application of chemical fertilizer or organic manure could obviously promote soil N-supplying capability,but the statistical analysis results indicate that the effect of organic manure was higher than that of chemical fertilizer and their combination was much more efficient.
【Fund】: 国家自然科学基金项目资助(30100022);; 国家自然科学基金重点项目资助(40535028)
【CateGory Index】: S158
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