【序号】:1 【作者】:M. J. Glendininga1 【题名】:The effects of long-term applications of inorganic nitrogen fertilizer on soil nitrogen in the Broadbalk Wheat Experiment 【期刊】:The Journal of Agricultural Science 【年、卷、期、起止页码】:127:347-363 【全文链接】:http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=4805168 【序号】:2 【作者】:L. Zelles1 and Q. Y. Bai2 【题名】:Fractionation of fatty acids derived from soil lipids by solid phase extraction and their quantitative analysis by GC-MS 【期刊】:Soil Biology and Biochemistry