农牧交错带人工种草对土壤磷素有效性的影响

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郭彦军,倪郁,韩建国

Effects of establishing perennial artificial grasslands on the availability of soilphosphorus in agro-pastoral transitional zones, Northern China

GUO Yan-Jun, NI Yu, HAN Jian-guo

草业学报 . 2010, (2): 169 -174 .