作　　者： ; ; ; ; ;

机构地区： 华南农业大学资源环境学院

出　　处： 《华南农业大学学报》 2012年第3期321-325,共5页

摘　　要： 在实验室条件下,以不同配比的牛粪和稻秆作为培养基质,研究了赤子爱胜蚓Eisenia foetida在不同碳氮比培养基条件下生物量以及数量变化情况.结果表明:100%牛粪(碳氮比为21.8)和80%牛粪+20%稻秆组合(碳氮比为24.9)堆置30、60、90 d后的蚯蚓生物量显著高于其他处理;60%牛粪+40%稻秆组合(碳氮比为28.7)堆置60和90 d后蚯蚓总数量最多,显著高于其他处理,在第90天达到324条;另外,培养基质的碳氮比与蚯蚓的生物量和数量均呈显著负相关关系(P<0.001).由此可知,碳氮比在21.8～24.9之间的牛粪和稻秆基质组合适宜蚯蚓生长,碳氮比为28.7的牛粪和稻秆基质组合适宜蚯蚓繁殖. Comparative studies were performed to evaluate the growth and fecundity of earthworm, Eisenia foetida, in the combination of cattle manure and rice straw with different C/N ratios under laboratory condition. The observations indicated that the biomass of E. foetida was significantly higher in cattle manure with C/N ratio of 21.8 and 80% cattle manure ＋20% rice straw with C/N ratio of 24.9 when compared to other treatments at 30, 60, 90 days. Moreover, the population of worms in 60% cattle manure ＋40% rice straw, which had a C/N ratio of 28.7, was significantly greater than that of others at 60 or 90 days, and the number of worms increased up to 324 after 90 days. The C/N ratio of vermibeds showed significantly negative relation with earthworm biomass and population. In conclusion, the optimum C/N ratio of cattle manure and rice straw combination is from 21.8 to 24. 9 for E. foetida growth, and 28.7 for fecundity.

关 键 词： 赤子爱胜蚓 牛粪 稻秆 碳氮比 生长 繁殖

领　　域： [环境科学与工程]