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The Effects of Different Fertilizing Methods on Nitrification and Denitrification in Black Soil in Songnen Plain

作  者:
LIU Shu-yu;WANG Hong-yan;WANG Xu-mei;QI Zhi-yong
单  位:
;Resouices and Environmental Sciences College, Northeast Agricultural University, Harbin Heilongjiang 150030, PRC
关键词:
nitrification;denitrification;fertilizing
摘  要:
The paper compared the effects of application of farm manure with chemical fertilizers on nitrificatior and denitrification in black soil, the result showed that the numbers of nitrobacterias and denitrobacterias in farm manure treatment were both higher than that of other treatments. The intensity of denitrification in chemical treatment was higher than that of manure treatment. The content of organic matter in soil was correlated with the intensity of nitrification and denitrification, and the coefficients were respectively 0 9981 and 0.8693.

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