【摘要】 通过赤子爱胜蚓对发酵后猪粪(粮食猪粪、饲料猪粪)和秸秆(水稻秸秆、玉米秸秆)及其不同质量比例(1∶1或3∶1)混合物料进行摄食分解后,对物料前后及不接种赤子爱胜蚓的对照样品理化性质进行分析,发现赤子爱胜蚓处理90d后的不同物料质量均减少,减少的质量显著多于不接种蚯蚓的对照处理(P<0.01)。赤子爱胜蚓对猪粪与秸秆混合物料的分解量多于纯猪粪和纯秸秆(P<0.01)。猪粪与玉米秸秆的混合物,经蚯蚓处理后,混合物料减少的质量显著多于猪粪与水稻秸秆混合物中物料减少的质量(P<0.05)。经蚯蚓处理后,饲料猪粪混合比例为3∶1的物料质量损失显著多于混合比例为1∶1的物料质量损失(P<0.01),而粮食猪粪混合比例为1∶1的物料质量损失与混合比例为3∶1的物料质量损失差异不显著(P>0.05)。接种赤子爱胜蚓后,物料的全氮和速效氮、全磷和速效磷以及全钾和速效钾的含量增加,有机质和pH值降低。粮食猪粪和玉米秸秆以质量1∶1的比例进行混合物料的有机质、速效氮、速效磷和速效钾含量变化幅度最大,表明赤子爱胜蚓对此混合物料的分解作用最大。本研究可为猪粪和作物秸秆的资源化利用提供理论依据。更多还原

【Abstract】 Fermented foodstuff- and feedstuff-derived pig dung, rice- and maize straw, and their 1:1 and 3:1 mixtures were added with Eisenia foetida, and the physical and chemical properties of the pig dung, straw, and their mixtures were analyzed at the commencement and after 90 days of E. foetida addition, taking no E. foetida addition as the control. After 90 days E. foetida addition, all the test materials appeared mass loss, and the loss rate was significantly greater than that of the control (P<0.01). Under E. foetida addition, the decomposed amount of pig dung-crop straw mixture was significantly higher than that of pig dung or crop straw alone (P<0.01), the mass loss of pig dung-maize straw mixture was significantly greater than that of pig dung-rice straw mixture (P<0.05), the 3:1 feedstuff-derived pig dung-crop straw mixture had a significantly greater mass loss than the 1:1 feedstuff-derived pig dung-crop straw mixture (P<0.01), while the 1:1 and 3:1 mixtures of foodstuff-derived pig dung and crop straw had less difference in their mass loss (P>0.05). E. foetida addition increased the total and available N, total and available P, and total and available K contents of test materials, but decreased the materials organic matter content and pH value. The 1:1 foodstuff-derived pig dung-crop straw mixture had the largest variation range of organic matter and available N, P, and K contents, suggesting that E. foetida played the greatest role in the decomposition of this mixture. This study would provide theoretical basis for the resource utilization of pig dung and crop straw.更多还原