| 不同栽培年限人参根区土壤养分 酶活性及微生物量的变化 |
| 投稿时间：2021-01-04 点此下载全文
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| 引用本文：王天佑,丁万隆,尹春梅,王蓉,李勇.不同栽培年限人参根区土壤养分 酶活性及微生物量的变化[J].中国现代中药,2021,23(11):1927-1933 |
| DOI：10.13313/j.issn.1673-4890.20210104008 |
| 摘要点击次数: 331 |
| 全文下载次数: 129 |
| 作者中文名 | 作者英文名 | 单位中文名 | 单位英文名 | E-Mail |
| 王天佑 |
WANG Tian-you |
中国医学科学院 北京协和医学院 药用植物研究所，北京 100193
吉林农业大学 中药材学院，吉林 长春 130118 |
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China |
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| 丁万隆 |
DING Wan-long |
中国医学科学院 北京协和医学院 药用植物研究所，北京 100193 |
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China |
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| 尹春梅 |
YIN Chun-mei |
吉林农业大学 中药材学院，吉林 长春 130118 |
College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China |
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| 王蓉 |
WANG Rong |
中国医学科学院 北京协和医学院 药用植物研究所，北京 100193 |
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China |
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| 李勇* |
LI Yong |
中国医学科学院 北京协和医学院 药用植物研究所，北京 100193 |
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China |
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| 基金项目:国家中药标准化项目（ZYBZH-C-JL-27）；中国医学科学院医学与健康科技创新工程项目（2016-I2M-3-017） |
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| 中文摘要:目的 阐释不同栽种年限人参根区土壤养分、酶活性及微生物量的变化情况及其相互关系。方法 参照行业标准测定土壤养分含量，采用比色法测定土壤酶活性、平板稀释计数法测定土壤微生物量。结果 随栽培年限不断增加，人参（2年生除外）根区土壤真菌、细菌、放线菌量及丰富度均呈逐年降低趋势，土壤碱解氮含量和过氧化氢酶活性呈先升高后降低再升高趋势，土壤有效磷含量、纤维素酶以及蔗糖酶活性呈先升高后降低趋势，土壤脲酶活性呈先降低后升高趋势，土壤速效钾含量和酸性磷酸酶活性呈逐年升高趋势，其他土壤养分因子呈不同程度降低趋势。分析发现，相关系数（r）≥0.2的数据占全部数据的80.88%。结论 土壤微生物、矿质元素及酶活性等土壤因子具有明显的相关性，人参栽培过程中土壤微生态失衡及病原物生物量增加是人参连作障碍形成的主要原因之一。 |
| 中文关键词:人参 连作障碍 土壤酶活性 土壤养分 土壤微生物 |
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| Dynamics of Soil Nutrients, Enzyme Activity, and Microbial Biomass in Rhizosphere of Panax ginseng of Different Growing Years |
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| Abstract:Objective To elucidate the changes of soil nutrients, enzyme activity, and microbial biomass in rhizosphere of Panax ginseng of different growing years and their relationship.Methods The content of soil nutrients was determined with standard methods, soil enzyme activity by colorimetry, and soil microorganism biomass with plate dilution method.Results Over time, the biomass and richness of soil fungi, bacteria and actinomycetes in P. ginseng (except the 2-year-old plants) rhizoshpere decreased, and the content of soil alkali-hydrolyzable nitrogen and catalase activity increased first, then decreased, and finally rose. The content of soil available phosphorus, cellulase activity, and sucrase activity elevated first and then reduced. The activity of soil urease decreased first and then increased. The content of soil available potassium and acid phosphatase activity increased year by year. Other soil nutrient factors decreased to varying degrees. Most (80.88%) of the correlation coefficients were ≥ 0.2.Conclusion Soil factors such as soil microorganisms, mineral elements, and enzyme activity are significantly correlated. The imbalance of soil microecology and the increase in soil-borne pathogens are among the main reasons for the continuous cropping obstacles of P. ginseng. |
| keywords:Panax ginseng C. A. Meyer continuous cropping obstacle soil enzyme activity soil nutrients soil microorganisms |
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