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首页> 外文期刊>Process Biochemistry >Influence of microbial inoculation and co-composting material on the evolution of humic-like substances during composting of horticultural wastes
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Influence of microbial inoculation and co-composting material on the evolution of humic-like substances during composting of horticultural wastes

机译:园艺废弃物堆肥过程中微生物接种和混合物质对腐殖质样物质演变的影响

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摘要

Four different raw materials (olive-oil mill, pruning waste, rice straw and almond shell waste) used as additives were mixed with pepper plant wastes for composting purposes. Three bacterial strains isolated from prior composting processes and identified as Bacillus shackletonni, Streptomyces thermovulgaris and Ureibacillus thermosphaericus were added to every windrow and their effect on humic-like substances evolution was studied. In all the cases, an increase in the humification indices (humic to fulvic acids ratio, humification ratio and humification index) was obtained. On the other hand, inoculation significantly affected the humification indices, and differences due to both raw materials and microbial inoculants could be observed. When inoculated in almond shell and rice straw heaps respectively, B. shackletonni and U. thermosphaericus induced higher humification levels than those obtained for other raw material/inoculant combinations. Thus, the improvement of composting processes by means of inoculation seems to depend on properties of raw materials and microorganisms applied.
机译:用作添加剂的四种不同原料(橄榄油厂,修剪废料,稻草和杏仁壳废料)与胡椒植物废料混合,用于堆肥。从堆肥过程中分离出的三种细菌菌株分别被鉴定为沙克氏杆菌,热链霉菌和热球形芽孢杆菌,并研究它们对腐殖质样物质进化的影响。在所有情况下,均增加了腐殖化指数(腐殖酸与富里酸的比率,腐殖化比率和腐殖化指数)。另一方面,接种显着影响了腐殖化指数,并且可以观察到由于原料和微生物接种剂造成的差异。当分别在杏仁壳和稻草堆中接种时,沙克氏菌和嗜热球形芽孢杆菌诱导的腐殖化水平高于其他原料/接种剂组合所获得的腐殖化水平。因此,通过接种来改善堆肥过程似乎取决于所用原料和微生物的特性。

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