蚯蚓堆肥与益生菌配施对土壤肥力及微生物特性的影响

发布时间：2018-01-13 23:19

本文关键词：蚯蚓堆肥与益生菌配施对土壤肥力及微生物特性的影响　出处：《土壤》2016年06期 　论文类型：期刊论文

【摘要】：基于等量养分条件,本试验研究了蚯蚓堆肥与解淀粉芽孢杆菌(X)和荧光假单胞菌(Y)两株不同功能益生菌配施对西瓜地土壤肥力和微生物特性的影响。结果表明,不论添加益生菌与否,蚯蚓堆肥较单施化肥或常规堆肥均提高了土壤速效养分含量,显著增加了土壤微生物生物量和土壤酶活性,其中土壤NO_3~ -N含量较常规堆肥提高了14.7%。益生菌的添加活化了土壤养分,增加了土壤细菌、放线菌、解淀粉芽孢杆菌和荧光假单胞菌数量,降低了土壤真菌数量,同时显著提高了土壤酶活性。各处理比较而言,蚯蚓堆肥配施益生菌在土壤速效养分含量、土壤微生物生物量及土壤酶活性上提升作用最为明显,其中蚯蚓堆肥配施混合益生菌处理(VCXY)的土壤细菌数量和蔗糖酶活性相较于常规堆肥配施混合益生菌处理(CDXY)分别提高了32.0%和14.4%。方差分析结果表明,蚯蚓堆肥和常规堆肥与益生菌在土壤速效磷、速效钾、微生物生物量碳、细菌数量、真菌数量、脲酶及蔗糖酶活性上存在显著交互作用。综上所述,蚯蚓堆肥与益生菌配施可显著促进土壤肥力和微生物活性的改善,可替代部分化肥用于设施蔬菜的绿色生产和土壤培肥。
[Abstract]:Based on the same amount of nutrients. The effects of earthworm compost, Bacillus amylolyticus X) and Pseudomonas fluorescens on soil fertility and microbial characteristics in watermelon field were studied. No matter whether it was added or not, earthworm compost increased the content of soil available nutrients, soil microbial biomass and soil enzyme activity compared with single fertilizer or conventional compost. The content of No3 ~ + -N in soil increased by 14.70.The addition of probiotics activated soil nutrients and increased soil bacteria and actinomycetes. The amount of Bacillus amylolyticus and Pseudomonas fluorescens decreased the number of soil fungi and significantly increased the activity of soil enzyme. Soil microbial biomass and soil enzyme activity increased most obviously. The amount of soil bacteria and sucrase activity of earthworm compost combined with mixed probiotics treatment were higher than that of conventional compost combined with mixed probiotics treatment. The results of ANOVA showed that 32.0% and 14.4 were increased respectively. Earthworm compost and conventional compost had significant interaction with probiotics in soil available phosphorus, available potassium, microbial biomass carbon, bacterial number, fungal number, urease and sucrase activity. Combined application of earthworm compost and probiotics can significantly improve soil fertility and microbial activity, and can replace some chemical fertilizers for green production of greenhouse vegetables and soil fertilization.
【作者单位】：南京农业大学资源与环境科学学院;江苏省有机固体废弃物资源化协同创新中心;南京市蔬菜科学研究所;
【基金】：国家重点研发计划项目(2016YFD0200106) 农业部引进国际先进农业科学技术计划项目(2015-Z42)资助
【分类号】：S158;S154
【正文快照】： 随着我国畜牧业规模化和集约化的不断发展,农业有机废弃物越来越受到人们的关注,一方面,有机废弃物的无序化处理带来了环境污染;另一方面,由于有机废弃物含有的大量养分得不到合理利用而造成严重的资源浪费[1 2]。畜禽粪便经发酵而成的有机堆肥,既解决了农业有机废弃物的处置

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