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贵州中部喀斯特山区水稻田面水N、P浓度变化及污染评价
张巧香 刘方 朱健 凌明阁
Changes in Concentrations of N and P in Surface Water of Paddy Field and Its Pollution Assessment in Karst Hilly Areas
中国农学通报 . 2012, (24): 63 -67 .  DOI: 10.11924/j.issn.1000-6850.2012-0983