不同棚龄及种植期对土壤微生物代谢功能的影响  

Effect of Planting Years and Growth Stages on Soil Microbial Metabolic Functions in Greenhouse

作　　者：陈锐[1] 孙晓宇[1] 路鹏鹏[1] 赵玲侠[1] 瞿佳[1] 沈卫荣[1] 

机构地区：[1]陕西省微生物研究所,陕西西安710043

出　　处：《北方园艺》2017年第11期179-185,共7页Northern Horticulture

基　　金：陕西省科学院青年人才培养资助项目(2013K-25);陕西省农业科技创新与攻关资助项目(2015NY088)

摘　　要：为了解不同年限(3、6、9、15年)及不同种植期(定植期、坐果期、盛果期、拉秧期)的设施棚室土壤微生物对碳源利用的变化趋势,对土壤理化性质和土壤微生物碳源利用进行了检测分析。结果表明:种植年限增加导致棚室土壤pH约降低0.52,土壤可溶性盐分、总磷及总碳随着棚龄增加逐渐累积。不同棚龄土壤中,9年棚室微生物碳源代谢活性最高,15年棚室有所下降,但差别不显著。与不同棚龄棚室土壤代谢差异显著相关的碳源有15种。不同种植期土壤样本中,微生物群落对各类碳源代谢均呈现坐果期最强,拉秧期最弱的特征,并且差异显著,与其代谢差异显著相关的碳源19种。In order to indicate the change of microbial metabolic function in different planting years（3,6,9 and 15 years） and different growth stages（planting,bear fruit,productive and uproot） in greenhouse,physical-chemical properties and microbes carbon source utilization were investigated.The results showed that soil pH dropped about 0.52 units.The water soluble salt,total phosphorus and total carbon were accumulated in greenhouse soil with the increase of shelf age.The microbial metabolic of the carbon source was the highest in the 9 years soil,and changed little at 15 years,but there was no significant difference.There were 15 types of carbon sources had significant correlation with microbial metabolic activity between the different planting years.Microbial metabolic of the carbon source at uproot period were the lowest and significant difference with planting,bear fruit and productive period,there were 19 types of carbon sources had significant correlation with microbial metabolic activity between the plant growth stage in greenhouse.

关 键 词：细菌 BIOLOG ECO平板 微生物群落 代谢功能 

分 类 号：S625.206.1[农业科学—园艺学]