Change of different nitrogen forms in surface water of rice field and reduction of nitrogen fertilizer application in rice season
ZHAO Dong, YAN Tingmei, QIAO Jun, XUE Feng, YANG Linzhang
Ecology and Environment . 2011, (4): 743 -749 .  DOI: 10.16258/j.cnki.1674-5906(2011)04-0743-07

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