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通过网室小区试验，观测得出：（１）４种沼渣处理和单施化肥处理的一季稻田平均甲烷排放通量为０．５６９～２．１８８ｍｇ０￣２·ｈ，两者无显著差异；农家肥处理稻田的平均甲烷排放通量为４４．１８ｍｇ／ｍ￣２·ｈ显著高于前两种处理，表明施用沼渣和化肥比施用农家肥能显著减少稻田甲烷排放量；（２）各处理稻田甲烷排放通量峰值期部出现在水稻蘖期至拔节初期，表明这一时期是控制稻田甲烷排放总量的关键时间；（３）各处理甲烷排放通量分别与淹水前各处理土壤及供试有机肥的易矿化碳含量、ＣＨ＿４－Ｃ含量呈显著正相关关系，这表明土壤易矿化碳含量是形成稻田甲烷的重要条件；（４）各处理之间水稻产量没有明显差异。
Through network test in residential area, we got: (1) The average flux of methane in the first season paddy with four kinds of biogas residue treatment and single chemical fertilizer treatment was 0.569 ~ 2.188mg0 ~ 2 · h, no significant difference was found between them; The average methane emission flux from the manure-treated paddy fields was 44.18mg / m ~ 2 · h, which was significantly higher than the former two treatments, indicating that the application of biogas residue and chemical fertilizers could significantly reduce methane emissions from rice paddies than the application of manure fertilizer. (2) The peak period of methane emission from paddy fields appeared during the tillering stage to the early stage of jointing, indicating that this period was the key time to control the total methane emissions from paddy fields. (3) There was a significant positive correlation between the content of CH4-C and the content of readily available mineral fertilizers, which indicated that the content of soil easily mineralized carbon was an important condition for methane formation in paddy field. (4) There was no significant difference in the yield of rice between treatments .