Effects of Biogas Slurry Instead of Chemical Fertilizer on Soil Arthropod Community in Paddy Field
Author:
Affiliation:

Clc Number:

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    【Objective】Soil arthropod is an important part of the soil ecosystem. They play an important role in decomposing organic matter, improving soil physical and chemical properties, improving soil fertility and promoting plant nutrient absorption. The arthropod community is sensitive to fertilization management and is, therefore an important indicator reflecting the health and stability of the farmland ecosystem.【Method】Soil samples were collected from experimental plots of reclaimed paddy fields in Jiangsu Tidal Flat, which has been running for 6 years. The plots were treated with biogas slurry instead of chemical fertilizer(0%, 33%, 66% and 100%). The collected samples were, analyzed for the effects of each treatment on species, quantity, community density and diversity of soil arthropods, and their relationship with the changes of soil properties.【Result】In the treatment of biogas slurry instead of chemical fertilizer, 1 024 soil animals were collected, belonging to 9 classes and 18 groups. The results showed that the dominant groups of soil arthropods in the paddy field under each fertilization treatment were Prostigmata, Collembola and Oribatida, accounting for 45.44%, 20% and 13.38% of the total density, respectively. Biogas slurry instead of chemical fertilizer(i.e. combined application of biogas slurry and chemical fertilizer)is beneficial for improving the density, diversity index and richness index of soil arthropods. When the ratio of biogas slurry to chemical fertilizer was 66%(the total amount of N applied was 225 kg·hm-2), the density, diversity index and richness index of soil arthropods were significantly higher than those of pure chemical fertilizer(the ratio of biogas slurry to chemical fertilizer was 0%)(P <0.05). Compared with pure chemical fertilizer, it increased by 129.25%, 8.67% and 34.78%, respectively. Correlation analysis showed that soil organic carbon and total nitrogen were the main factors affecting soil arthropod density in paddy fields.【Conclusion】The combined application of biogas slurry and chemical fertilizer has a significant effect on the soil arthropod community in paddy fields. From the effect of different proportions of biogas slurry replacing chemical fertilizer on soil arthropod density and community structure, the combined application of biogas slurry and chemical fertilizer is recommended instead of replacing chemical fertilizer.

    Reference
    Related
    Cited by
Get Citation

TANG Qi, CAO Lei, QIAN Jiannan, TANG Yifan, SHEN Jianhua, HAN Jiangang. Effects of Biogas Slurry Instead of Chemical Fertilizer on Soil Arthropod Community in Paddy Field[J]. Acta Pedologica Sinica,2023,60(3):904-912.

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:September 24,2021
  • Revised:January 29,2022
  • Adopted:March 26,2022
  • Online: April 19,2022
  • Published: May 28,2023