Impact of Composting Methods on Nitrogen Retention and Losses during Dairy Manure Composting

Bibliographic Data

ID15470567
AuthorsXiao Yang (0009-0009-6059-6081, Institute of Environment and Sustainable Development in Agriculture), Enke Liu (0000-0002-5498-993X, Institute of Environment and Sustainable Development in Agriculture, corresponding author), Xiuliang Zhu (0000-0001-6025-5791, Chinese Academy of Agricultural Sciences), Xinmeng Zhu (Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China), Hongyuan Wang (0009-0000-3110-568X, Chinese Academy of Agricultural Sciences), Hongbin Liu (0000-0001-7585-0622, Chinese Academy of Agricultural Sciences), Xiu Liu (0000-0001-6057-2551, Chinese Academy of Agricultural Sciences), Wenyi Dong (Chinese Academy of Agricultural Sciences, corresponding author)
Year2019
Volume16
Issue18
Pages3324-3324
Publication date2019-09-09
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueInternational Journal of Environmental Research and Public Health (JOURNAL)
Journal identifiersISSN: 1661-7827 • E-ISSN: 1660-4601
PublisherMultidisciplinary Digital Publishing Institute (PUBLISHER • CH)
DOI10.3390/ijerph16183324
PMID31505898
OpenAlexW2972418791
LanguageEN
Citations received2
References cited59

Currently, composting is one of the most effective methods for treating fecal waste on large-scale livestock and poultry farms, but the quality effects of different composting methods are different. In this study, we implemented four composting methods, including farmer compost (FC), anaerobic compost (AnC), mixed compost (MC), and aerobic compost (AC), to study the effects of different composting methods on nitrogen (N) losses while composting dairy manure. Our results showed that the germination indexes (GIs) of three of the composting treatments (AnC, MC, and AC) exceeded 80%, which met the maturity requirements for composted products. Ammonia (NH 3 ) emissions were the main contributor to nitrogen losses, while accumulated nitrous oxide (N 2 O) emissions accounted for the lowest proportion of nitrogen losses. The cumulative N losses via the leachate of the AC treatment were the lowest and accounted for 0.38% of the initial total nitrogen (TN). The accumulated N losses of the AC, FC, AnC, and MC treatments accounted for 13.13% 15.98%, 15.08%, and 19.75%, respectively, of the initial TN. Overall, the AC method significantly reduced N losses via leachates, further reducing TN losses. This observation suggests that AC might be an appropriate method for highly efficient nitrogen management during dairy manure composting

Agronomy · Animal science · Biology · Compost · Green waste · Leachate · Manure · Nitrogen · Chemistry · Composting and Vermicomposting Techniques · Constructed Wetlands for Wastewater Treatment · Environmental Science · Waste Management and Recycling · Environmental Chemistry