Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (26): 66-73.doi: 10.11924/j.issn.1000-6850.casb2020-0857

Special Issue: 生物技术 玉米 烟草种植与生产

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Effects of Mixed Application of Biochar-based Soil Conditioner and Specific Fertilizers on Maize Microorganism and Enzyme Activities in Soil

Wu Panpan1(), Yang Sufen1(), Liu Shuwu2, Wang Huanxiang3, Zhang Xiaoning4, Gu Limin1, Liu Rui1   

  1. 1Henan Chemical Industry Research Institute Co., Ltd., Zhengzhou 450052
    2Wenshan Branch Company of Yunnan Tobacco Company, Wenshan Yunnan 663000
    3Henan Academy of Natural Resources Sciences, Zhengzhou 450000
    4Quzhou Experimental Station of China Agricultural University, Handan Hebei 057250
  • Received:2021-01-01 Revised:2021-03-01 Online:2021-09-15 Published:2021-09-30
  • Contact: Yang Sufen E-mail:1092756498@qq.com;sufenfen@126.com

Abstract:

Field experiments were conducted to determine the effects of biochar-based soil conditioner application combined with maize-specific fertilizer (T1) and maize biologic special fertilizer (T2) on microbial population, community structure and soil enzyme activities of maize. The results indicated that compared with the control, biochar-based soil conditioner application combined with two maize-specific fertilizers could significantly improve the amounts of bacteria and actinomycetes, but reduce the number of soil fungi. The soil sucrose, urease, acid phosphatase activities increased in different degrees, while the soil peroxidase activities were not significantly different. Metabolic activity and functional diversity of soil microbial community under applying biochar-based soil conditioner combined with two maize-specific fertilizers were higher than those of the control. The principal components analysis (PCA) also demonstrated that, the T1, T2 and CK treatments were significantly different in the principal component coordinate system, indicating that the functional diversity of maize rhizosphere microbial community was significantly different. T1 and T2 treatments were more conducive to maize yield. In general, compared with farmers’ fertilization, biochar-based soil conditioner application combined with two maize-specific fertilizers has better effect, and biologic special fertilizer for maize treatment has the best effect.

Key words: biochar-based soil conditioner, corn, BIOLOG, enzyme activity, rhizosphere microorganism, community functional diversity

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