有机肥与烟草专用肥配施对植烟土壤微生物和土壤酶活性的动态变化

发布时间：2018-04-10 06:33

本文选题：有机肥　切入点：烟草专用肥　出处：《土壤通报》2017年05期

【摘要】：采用模拟盆栽试验,以烟草专用肥为对照,研究4种不同有机肥与烟草专用肥配施对植烟土壤微生物数量及酶活性的动态变化。结果表明,随着烤烟的生长,各处理中土壤中细菌、放线菌、真菌和蔗糖酶活性表现出,先上升后下降的趋势,其中均在旺盛期达最大;磷酸酶和脲酶活性表现出‘S’型的变化趋势,前期增加,团棵期达到最高,之后有所下降,成熟期有小幅增加趋势;过氧化氢酶活性表现先下降,后上升,再下降的趋势,其中还苗期最大。与CK相比,不同有机肥与烟草专用肥配施能明显增加植烟土壤中微生物数量,提高土壤酶活性,各配施处理中均表现出猪粪+烟草专用肥牛粪+烟草专用肥鸡粪+烟草专用肥饼肥+烟草专用肥烟草专用肥。经相关分析表明,土壤中细菌和真菌、磷酸酶活性和脲酶活性、蔗糖酶活性和放线菌均表现出极显著正相关,过氧化氢酶活性和磷酸酶活性表现出显著正相关。猪粪+烟草专用肥对植烟土壤微生物数量还是土壤酶活性均最明显。
[Abstract]:A simulated pot experiment was conducted to study the dynamic changes of microorganism quantity and enzyme activity in tobacco planting soil by using four different organic fertilizers and tobacco special fertilizer as control.The results showed that with the growth of flue-cured tobacco, the activities of bacteria, actinomycetes, fungi and sucrase in the soil of each treatment showed a tendency of first rising and then decreasing, and all of them reached the maximum in the exuberant period.The activity of phosphatase and urease showed the change trend of "S 'type", which increased in Prophase, reached the highest in cluster stage, then decreased, and increased slightly in mature stage, while the activity of catalase decreased first, then rose, then decreased, and then decreased.Among them, seedling stage is the largest.Compared with CK, combined application of different organic fertilizer and tobacco special fertilizer could significantly increase the number of microorganisms and increase the activity of soil enzyme in tobacco planting soil.Pig manure tobacco special fertilizer cow manure tobacco special fertilizer chicken manure tobacco special fertilizer tobacco special fertilizer tobacco special fertilizer tobacco special fertilizer.The correlation analysis showed that the activities of bacteria and fungi, phosphatase and urease, sucrase and actinomycetes were significantly positive correlation, catalase activity and phosphatase activity were significantly positive correlation.Pig manure tobacco special fertilizer had the most obvious effect on soil microbial quantity and soil enzyme activity.
【作者单位】：红河学院;
【基金】：云南省应用基础研究计划青年项目(2013FD048) 云南省教育厅项目(2016ZDX138) 红河学院校级质量工程(JJJG151024)资助
【分类号】：S154;S572

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