Nutrients balance and environment risk in high yield field
YE Ling, ZHANG Lijuan, LIU Wenju, LIU Shuqing, LIU Nan
Ecology and Environmental Sciences . 2010, (6): 1338 -1342 .  DOI: 10.16258/j.cnki.1674-5906(2010)06-1338-05

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