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研究了实施几种不同比例有阶肥及化肥的施肥方案对稻田甲烷排放的影响。在维持氮、磷、钾含量其本不变时，施较多的有机肥是甲烷排放率高的重要原因，而施较多化肥则能降低甲烷排放；同样是有机肥，已在沼气池中发酵后的沼渣经干燥后对稻田甲烷徘放的正效应要大大低于“新鲜”有机肥；有机肥数量及性质的改变对甲烷排放的影响程度要远远大于改变化肥量对甲烷排放的影响，即有机肥的数量及性质显影响稻田甲烷排放的主要因素；控制甲烷排放的方法应重点放在控制有机肥的施用上，沼渣作为一种再生性的资源，具有多种优点，能够用来代替目前常用的有机肥。沼渣肥与化肥结合施用可能是降低稻田甲烷排放的有效措施。
The effects of several fertilization schemes with different proportions of fertilizers and fertilizers on methane emission from paddy fields were studied. While maintaining the nitrogen, phosphorus and potassium contents unchanged, more organic fertilizer is the main reason for high methane emission rate, while applying more fertilizers can reduce methane emission; the same is organic fertilizer, which has been used in biogas digesters The positive effect of post-fermentation biogas residue on methane emission in paddy fields is much lower than that of “fresh” organic manure; the effect of the change of quantity and nature of organic manure on methane emission is much greater than that of changing the amount of chemical fertilizer on methane emission That is, the quantity and nature of organic fertilizer are the main factors affecting the methane emission in paddy field; the method of methane emission control should focus on the control of the application of organic fertilizer. As a renewable resource, biogas residue has many advantages Used to replace the commonly used organic fertilizer. Biogas residue fertilizers combined with chemical fertilizers may be effective measures to reduce methane emissions from paddy fields.