当前位置: X-MOL 学术Compost Sci. Util. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Reproduction Efficiency of Eisenia foetida and Substrate Changes During Vermicomposting of Organic Materials
Compost Science & Utilization ( IF 1.188 ) Pub Date : 2018-06-29 , DOI: 10.1080/1065657x.2018.1463877
Abbas Biabani 1 , Lynne Carpenter-Boggs 2 , Abdollatif Gholizadeh 1 , Mosareza Vafaie-Tabar 3 , Mohammad Osman Omara 4
Affiliation  

ABSTRACT Vermicomposting is the processing of organic substrates through digestion by worms, usually Eisenia foetida. The physico-chemical characteristics of the substrates and health of the worms are important parameter for effective vermicomposting. This study assessed reproduction efficiency and reproductive rate of E. foetida and changes in EC, pH, organic C, total Nitrogen and C:N ratio by vermicomposting different substrate mixtures. The study was performed as a completely randomized design with 10 treatments and 4 replicates. Manures from sheep and horse were tested alone and mixed at 50 and 75% with residues of alfalfa and wheat straw. Wheat straw was also tested alone and mixed at 75% with 25% chicken manure. E. foetida were added to the mixtures and allowed to process the substrate mixtures for three months. Final EC, pH, organic C and N levels of vermicompost were measured, as well as the reproductive efficiency and reproductive rate of the E. foetida. All measured characteristics of the finished vermicompost were significantly different depending on substrate. Substrates also changed to differing degrees during vermicomposting. Total C and EC increased in all substrates; and pH, total N, and C:N decreased in all substrates during vermicomposting The greatest change of EC was in the 25% alfalfa + 75% sheep manure mixture, which was 12.8 dS.m-1 initially and 18.6 dS.m-1 in finished vermicompost. Overall, pH declined and EC increased during the preparing of vermicompost.

中文翻译:

臭虫繁殖效率及有机材料蚯蚓堆肥过程中基质的变化

摘要 蚯蚓堆肥是通过蠕虫(通常是 Eisenia foetida)的消化处理有机基质。基质的物理化学特性和蠕虫的健康状况是有效蚯蚓堆肥的重要参数。本研究通过蚯蚓堆肥不同的基质混合物来评估 E. foetida 的繁殖效率和繁殖率以及 EC、pH、有机碳、总氮和 C:N 比的变化。该研究是作为完全随机设计的,有 10 个处理和 4 个重复。羊和马的粪便单独进行测试,并以 50% 和 75% 的比例与苜蓿和小麦秸秆的残留物混合。小麦秸秆还单独进行了测试,并以 75% 的比例与 25% 的鸡粪混合。将 E. foetida 添加到混合物中并允许处理底物混合物三个月。最终 EC、pH、测量了蚯蚓粪的有机 C 和 N 水平,以及 E. foetida 的繁殖效率和繁殖率。成品蚯蚓堆肥的所有测量特性根据基质的不同而显着不同。在蚯蚓堆肥过程中,基质也发生了不同程度的变化。所有底物的总 C 和 EC 增加;在蚯蚓堆肥过程中,所有基质中的 pH、总 N 和 C:N 均下降 25% 苜蓿 + 75% 羊粪混合物中 EC 的最大变化,最初为 12.8 dS.m-1 和 18.6 dS.m-1在完成的蚯蚓粪中。总体而言,在蚯蚓堆肥的制备过程中,pH 值下降,EC 增加。成品蚯蚓堆肥的所有测量特性根据基质的不同而显着不同。在蚯蚓堆肥过程中,基质也发生了不同程度的变化。所有底物的总 C 和 EC 增加;在蚯蚓堆肥过程中,所有基质中的 pH、总 N 和 C:N 均下降 25% 苜蓿 + 75% 羊粪混合物中 EC 的最大变化,最初为 12.8 dS.m-1 和 18.6 dS.m-1在完成的蚯蚓粪中。总体而言,在蚯蚓堆肥的制备过程中,pH 值下降,EC 增加。成品蚯蚓堆肥的所有测量特性根据基质的不同而显着不同。在蚯蚓堆肥过程中,基质也发生了不同程度的变化。所有底物的总 C 和 EC 增加;在蚯蚓堆肥过程中,所有基质中的 pH、总 N 和 C:N 均下降 25% 苜蓿 + 75% 羊粪混合物中 EC 的最大变化,最初为 12.8 dS.m-1 和 18.6 dS.m-1在完成的蚯蚓粪中。总体而言,在蚯蚓堆肥的制备过程中,pH 值下降,EC 增加。m-1 最初和 18.6 dS.m-1 在完成的蚯蚓堆肥中。总体而言,在蚯蚓堆肥的制备过程中,pH 值下降,EC 增加。m-1 最初和 18.6 dS.m-1 在完成的蚯蚓堆肥中。总体而言,在蚯蚓堆肥的制备过程中,pH 值下降,EC 增加。
更新日期:2018-06-29
down
wechat
bug