人工堆肥与自然落叶中微生物及环境特征差异  

The Different of Microorganism and Conditions Between the Compost and Natural Leaf Litter

作　　者：于秋良[1] 何荣[1] 杨志贤[1] 余炳锋[1] 李忠芳[1] 

机构地区：[1]贺州学院,广西贺州542800

出　　处：《中国农学通报》2013年第15期123-126,共4页Chinese Agricultural Science Bulletin

基　　金：广西自然科学基金"桂东地区典型农田土壤有机碳提升技术的研究"(2011GXNSFB018056);贺州学院科学研究基金"试验与模型结合探究南方水田生产力演变的主要驱动机制"(2012ZRKY12)

摘　　要：为了明确人工堆肥与落叶堆中微生物及环境特征的差异,以亚热带气候下的桂东地区腐熟人工堆肥、发酵中期人工堆肥和落叶堆作为研究对象,比较样本的温度、pH、小型动物和细菌等的差异,为建立适合当地的高效简易堆肥方法提供理论基础。结果表明:人工堆肥的温度在中期为50～60℃左右,末期基本和落叶土壤的温度一样,接近常温;人工堆肥末期的pH在8.0～8.2之间,呈弱碱性,不成熟堆肥即处于中期的人工堆肥pH在5.5～6.0之间,呈弱酸性,落叶土壤的pH在6.5～7.5之间,呈中性;人工堆肥所含小型动物在中期基本全被杀死,在末期则比较丰富,多于落叶土壤;末期人工堆肥的细菌为8.53×108cfu/g,中期人工堆肥的细菌为4.6×108cfu/g,落叶堆的细菌为1.82×108cfu/g,即堆肥细菌要比落叶堆的多。由此得出,不同土壤条件下微生物特征受人为活动影响显著。To provide basic data for application of local compost, we study the different of microorganism and conditions between the compost and natural leaf＇ s litters. We analyzed the sample temperature, pH value and small animal and bacterial diversity. The results showed that, artificial compost temperature in the medium was 50-60℃, stage of basic and leaves the soil temperature, closed to ambient temperature; artificial compost end-stage pH value in 8.0-8.2, which was weakly alkaline, not mature compost was in metaphase artificial compost at pH 5.5-6.0, a weak acid, leaves the pH value of soil in 6.5-7.5, a neutral; artificial compost contained in the medium of insects were killed, in the end was more rich, more than deciduous soil; stage artificial compost bacteria was 8.53×10^8 cfu/g, metaphase artificial compost bacteria was 4.6×10^8 cfu/g, leaf litter of bacteria was 1.82×10^8 cfu/g. There were different kinds of soil microbial characteristics significantly affected by human activity.

关 键 词：人工堆肥 自然落叶堆 细菌 地方性 

分 类 号：S3[农业科学—农艺学]