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林业科学 ›› 2011, Vol. 47 ›› Issue (9): 158-161.doi: 10.11707/j.1001-7488.20110927

• 研究简报 • 上一篇    下一篇

腐殖酸与无机肥配施对I-107欧美杨养分和土壤肥力的影响

张敬敏1,2, 刘春生, 叶桂梅4, 杜振宇3, 刘方春3, 邢尚军3   

  1. 1. 山东农业大学资源与环境学院 泰安 271018;2. 济宁市农业局 济宁272019;3. 山东省林业科学研究院 济南 250014;4. 临沂市质量技术监督局 临沂 276004
  • 收稿日期:2010-04-11 修回日期:2011-07-25 出版日期:2011-09-25 发布日期:2011-09-25
  • 通讯作者: 邢尚军

Populus×euramericara cv. ‘74/76’ Nutrient Content and Soil Fertility Affected by Application of Humic Acid with Inorganic Fertilizers

Zhang Jingmin1,2, Liu Chunsheng1, Ye Guimei4, Du Zhenyu3, Liu Fangchun3, Xing Shangjun3   

  1. 1. College of Resources and Environment, Shandong Agricultural University Tai’an 271018;2. Jining Municipal Bureau of Agriculture Jining 272019;3. Shandong Academy of Forestry Jinan 250014;4. Linyi Bureau of Quality and Technical Supervision Linyi 276004
  • Received:2010-04-11 Revised:2011-07-25 Online:2011-09-25 Published:2011-09-25

关键词: 腐殖酸, I-107欧美杨, 土壤, 酶, 养分含量

Abstract:

The effects of humic acid application on biomass of I-107 Populus euramericana, soil nutrients and enzyme activity were studied under regular- and higher-fertilized level with a potting experiment. The result showed that: The application of humic acid with inorganic fertilizers significantly increased the root, stem and leaf biomass of I-107 P. euramericana, and among them the increase of root biomass was the most by 58.60%. Addition of humic acid also increased the nitrogen, phosphorus and potassium nutrient contents in the poplar by an average of 5.35%, 25.52%, and 25.06%, respectively, therefore, the contents of soil available phosphorus and available potassium were lowered. Compared with inorganic fertilizer, the addition of humic acid also decreased the content of nitrate nitrogen, increased the content of ammonium nitrogen, total C, humic acid and fulvic acid, as well as the ratio of humic acid to fulvic acid. Under regular and higher-fertilized, application of humic acid increased urease activity by 24.71% and 5.83%, respectively, enhanced polyphenol oxidase activity by 21.05% and 46.34%, respectively, but had little effect on catalase activity. To sum up, application of humid acid with inorganic fertilizers had significant effects on nutrient absorption of the poplar and soil fertility.

Key words: humic acid, Populus×, euramericana cv. &lsquo, 74/76&rsquo, soil, enzyme, nutrition content

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