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不同通风方式对猪粪高温堆肥氮素和碳素变化的影响

Keywords: 通风方式,猪粪堆肥,腐熟度,氮素,碳素

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Abstract:

采用单一机械翻堆、强制通风与机械翻堆相结合和单一强制通风3种通风方式,研究不同的通风方式对猪粪堆肥过程中的温度、T-N、NH4+-N、NO3--N、T-C、水溶性C(DOC)和固相C/N比随时间的变化规律。结果发现,强制通风与机械翻堆相结合的方式是最佳的通风方式,它可以加快堆肥温度升高,促进NH4+-N向NO3--N的转化,有利于水溶性C(DOC)的分解和固相C/N的降低,从而加快堆肥的腐熟。

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