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[Effects of two microbial agents on high temperature composting of passion fruit marc]

Zhi Xu1, Li Tang, Shao-ming Li

  • 1College of Resources and Environmental Science, Yunnan Agricultural University, Kunming 650201, China. xuzhi9910@126.com

Ying Yong Sheng Tai Xue Bao = the Journal of Applied Ecology
|September 4, 2007
PubMed

Insights

Microbial agents Faby (MF) and Rongfeng (MR) significantly accelerated passion fruit marc composting. MF and MR improved compost quality by increasing nutrient content and porosity, with MF showing slightly better results.

Area of Science:

  • Agricultural Science
  • Environmental Science
  • Microbiology

Context:

  • Passion fruit marc is a significant agricultural byproduct requiring effective disposal and valorization.
  • Composting is a sustainable method for managing organic waste, but can be slow and inefficient.
  • Microbial agents are increasingly used to optimize composting processes.

Purpose:

  • To investigate the impact of two microbial agents, Faby (MF) and Rongfeng (MR), on the composting of passion fruit marc.
  • To analyze the effects of these agents on key composting parameters like temperature, C/N ratio, and nutrient content.
  • To evaluate the overall quality of the compost produced with and without microbial amendments.

Summary:

  • Both MF and MR accelerated the composting process, extending the high-temperature phase from 4 to 11-12 days.
  • These agents promoted a decrease in the C/N ratio and a significant increase in nitrate-nitrogen (NO3- -N) concentrations (58.0% for MF, 64.2% for MR).
  • Compost amended with MF or MR showed increased total N, P, K, total porosity, and water-holding porosity, with a decrease in bulk density. MF demonstrated a slight advantage in compost quality improvement over MR.

Impact:

  • The study demonstrates the efficacy of microbial agents in enhancing the efficiency and quality of passion fruit marc composting.
  • Findings suggest that MF and MR can lead to a faster production of nutrient-rich compost, suitable for agricultural applications.
  • This research contributes to sustainable waste management practices in agriculture by providing insights into optimizing composting with microbial inoculants.

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