华北农学报 ›› 2019, Vol. 34 ›› Issue (1): 172-180. doi: 10.7668/hbnxb.201750934

所属专题: 土壤肥料

• 资源环境·植物保护 • 上一篇    下一篇

草酸青霉菌HB1活化土壤磷及改善土壤生物学性状研究

何迪1, 赵全利2, 耿丽平1, 李芠瑾1, 董纯瑄1, 刘文菊1   

  1. 1. 河北农业大学 资源与环境科学学院, 河北省农田生态环境重点实验室, 河北 保定 071001;
    2. 河北农业大学 教学实验场, 河北 保定 071001
  • 收稿日期:2018-12-20 出版日期:2019-02-28
  • 通讯作者: 刘文菊(1971-),女,河北保定人,教授,博士,博士生导师,主要从事土壤修复研究。
  • 作者简介:何迪(1992-),女,河北唐山人,在读硕士,主要从事土壤环境质量评价与监控研究。
  • 基金资助:
    河北省应用基础研究计划重点基础研究项目(17962902D);国家科技支撑计划项目(2015BAD23B01)

Study on Mobilization of Soil Phosphorus and Improvement of Soil Biological Properties by Penicillium oxalicum HB1

HE Di1, ZHAO Quanli2, GENG Liping1, LI Wenjin1, DONG Chunxuan1, LIU Wenju1   

  1. 1. College of Resources and Environment Science, Hebei Agricultural University, Key Laboratory for Farm and Eco-environment, Baoding 071001, China;
    2. The Teaching Experiment Field, Hebei Agricultural University, Baoding 071001, China
  • Received:2018-12-20 Published:2019-02-28

摘要: 为了进一步明确草酸青霉菌HB1的溶磷能力及其对土壤生物学特性的影响,采用土壤培养试验与白菜培养试验的方法,研究了添加HB1、秸秆、秸秆+HB1对白菜的促生效应,及其对土壤pH、土壤速效磷、活化土壤磷的能力、相关土壤酶活性和微生物数量等的影响。结果表明,与对照相比,HB1处理的白菜幼苗鲜质量和白菜磷的累积量增加了21.61%,81.64%,而秸秆+HB1处理则有所降低,说明HB1对白菜的促生效应和溶解土壤磷的能力在秸秆还田的情况下一定程度上受到抑制;在土壤培养试验中,与对照相比,HB1处理的土壤碱性磷酸酶和纤维素酶活性分别提高了10.62%和56.41%,细菌、真菌的有效活菌数分别提高了108.75%,96.45%;在白菜培养试验中,HB1处理的细菌和真菌的有效活菌数也分别比对照提高了27.48%,33.02%,说明施用HB1改善了土壤的生物学性状。综上所述,草酸青霉菌HB1能有效溶解土壤中难溶性磷,增强白菜对土壤磷的吸收利用,改善土壤的生物学性状,而在秸秆还田的条件下HB1的促生效应及溶磷能力受到了一定程度的抑制。因此,在秸秆还田的情况下施用草酸青霉菌HB1要考虑秸秆腐解对其促生效应和溶磷能力的抑制效应。可为HB1菌在农业中的科学应用提供理论依据。

关键词: 草酸青霉菌HB1, 土壤酶活性, 土壤磷活化, 土壤微生物数量

Abstract: In order to further clarify the phosphate solubilizing ability of Penicillium oxalicum HB1 and its effects on soil biological characteristics, soil incubation experiment and Chinese cabbage soil pot experiment were conducted to investigate the effects of different treatments as HB1, straw and straw+HB1 on the plant growth, soil pH, soil available P, mobilization of soil P, soil enzyme activities and the numbers of soil microorganisms. The results showed that the fresh weight and P accumulation amount of Chinese cabbage were increased by 21.61% and 81.64% in HB1 treatment, while decreased in straw+HB1 treatment. This indicated that the growth promotion effects and the phosphorus dissolving ability of HB1 were inhibited in the situation of straw amendments partly. In soil incubation experiment, compared with the control, the soil alkaline phosphatase activities and cellulase activities in HB1 treatment were increased by 10.62% and 56.41%, respectively and the number of bacteria and fungus were increased by 108.75% and 96.45% in the same treatment, respectively. Moreover, the numbers of bacteria and fungus in HB1 treatment of Chinese cabbage soil pot experiment were increased by 27.48% and 33.02%,respectively, which implied that HB1 improved the soil biological properties. In conclusion, Penicillium oxalicum HB1 could mobilize soil insoluble phosphorus efficiently, promoting P uptake by Chinese cabbage, and improve soil biological properties. However, the efficiency of growth promotion and soil phosphorus mobilization of Penicillium oxalicum HB1 could be inhibited on the condition of wheat straw returning partly, which should be considered in the straw returning fields. The study could provide theoretical basis for applications of HB1 in agriculture.

Key words: Penicillium oxailcum HB1, Soil enzyme activities, Mobilization of soil P, The number of soil microbiology

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引用本文

何迪, 赵全利, 耿丽平, 李芠瑾, 董纯瑄, 刘文菊. 草酸青霉菌HB1活化土壤磷及改善土壤生物学性状研究[J]. 华北农学报, 2019, 34(1): 172-180. doi: 10.7668/hbnxb.201750934.

HE Di, ZHAO Quanli, GENG Liping, LI Wenjin, DONG Chunxuan, LIU Wenju. Study on Mobilization of Soil Phosphorus and Improvement of Soil Biological Properties by Penicillium oxalicum HB1[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(1): 172-180. doi: 10.7668/hbnxb.201750934.

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