[Effect of adding amendments on preserving nitrogen during chicken manure and saw composting].
In the automatic aerobic compost device, experiments were carried out to investigate the effect of four amendments on inhibition of nitrogen losses during the chicken manure and saw composting. The changes of chemical parameters, temperature, pH, water soluble ammonium and organic nitrogen, total nitrogen and organic carbon with time during the aerobic composting process were investigated. The results suggested that adding four amendments have certain effect on preserve nitrogen and chemical parameters. Treatments added different amendments all decreased the nitrogen losses and increased the decomposition of organic carbon for 40 days-composting. The effect extent of four amendments was adding peat and superphosphate together > adding peat > adding superphosphate > adding zeolite. Especially adding peat and superphosphate together prolonged the high temperature stage 5 days, decreased the pH 0.89 pH unit in the initial stage and 0.44 pH unit in the high temperature stage during composting, and it decreased the nitrogen losses about 65.1% during the composting.
Huang
Yimei
Y
College of Resource and Environmental Science, Northwestern Agricultural-Forestry University of Science and Technology, Yangling 712100, China.
Qu
Dong
D
Li
Guoxue
G
D000818:Animals; D019149:Bioreactors; D002645:Chickens; D003247:Conservation of Natural Resources; D007220:Industrial Waste; D008372:Manure / Q000032:analysis / Q000382:microbiology*; D009584:Nitrogen / Q000378:metabolism*; D012037:Refuse Disposal / Q000191:economics; D014934:Wood
D007220:Industrial Waste; D008372:Manure; D009584:Nitrogen