Changes of Maturity Indexes During the Chicken Manure Composting
In the research, chicken manure and wheat straw used as material, high-temperature aerobic composting was carried on. Changes of physical-chemical index of ambient temperature, pH, C/N were studied to provide a scientific basis and technology guideness for rapid ultilizating agricultural waste resources. Results showed: ambient reached the highest temperature 60℃ when C/N=30, the high temperature can sustained 11 days, pH increased then decreased during the composting. At the end of composting, C/N=16.4, the content of NH4+-N reduced 74.2％ comparing with the highest, HR increased 58.8％ and humic acid increased 107％comparing with the lowest, fulvic acid decreased 47.1％ comparing with the pre-composting.
NETL
NSTL
万方数据
维普
