1985～1988年在河南农业大学农站进行了6种不同质地土壤施用有机肥料的盆钵试验。探讨了不同质地土壤上,有机物料对土壤腐殖质组成和氮素变化的影响及有机质的变化规律。结果表明,随施肥量的增加,腐殖质总碳、胡敏酸/富非酸及土壤C/N 比在各质地土壤中普遍增高;有机质和全氮含量也随施肥量的增加而变大。但是土壤的C/N 比,在3a 以后都下降至11.6左右,而趋于稳定。 From 1985 to 1988, 6 different soil organic fertilizers were potted in the farm station of Henan Agricultural University. The effects of organic materials on soil humus composition and nitrogen change and the variation of organic matter in soils with different textures were discussed. The results showed that the total carbon, humic acid / fulvic acid and soil C / N ratio of humus were generally higher in soils with different soil fertility levels. The contents of organic matter and total nitrogen also increased with the increase of fertilizer application rates. However, the C / N ratio of soil decreased to about 11.6 after 3 years and tended to be stable.