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Chinese Journal of Applied Ecology ›› 2005, Vol. 16 ›› Issue (4): 693-697.

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Effects of microbial agents on NH3 emission during pig manure composting

WANG Weiping1, WANG Kaiying2, XUE Zhiyong1, ZHU Fengxiang 1   

  1. 1. Institute of Environment Resources and Soil Fertilizer, Zhejiang Agricultural Academy of Sciences, Hangzhou 310021, China;
    2. Institute of Agricultural Bio-Environment Engineering, Zhejiang University, Hangzhou 310029, China
  • Received:2004-10-13 Revised:2005-01-18 Online:2005-04-15 Published:2005-04-15

Abstract: This paper studied the effects of different mixed microbial agents on the NH3 emission during pig manure-sawdust (9:1,fresh w/w) composting. The results showed that the NH3 emission was mainly occurred at the high temperature (>50 ℃) period during the early 15 days of composting. The addition of 3% mixed microbial agents 1,2 and 3 had a definite inhibitory effect on the NH3 emission,and the effect of 5% mixed microbial agent 1 was significant (P<0.05).

Key words: Pig manure, Composting, Microbial agent, NH3

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