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

ABSTRACT: 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 (NH3) emissions were the main contributor to nitrogen losses, while accumulated nitrous oxide (N2O) emissions accounted for the lowest proportion

SUBMITTER: Yang X 

PROVIDER: S-EPMC6765887 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature