@article{chung_2017,  title={Ph, Ammonia Flux, and Total Nitrogen in Duck Litter with Chemical Blends - A Field Study},  volume={19},  ISSN={1516-635X},  url={https://doi.org/10.1590/1806-9061-2017-0491},  DOI={10.1590/1806-9061-2017-0491},  number={4},  journal={Brazilian Journal of Poultry Science},  publisher={Fundação de Apoio à Ciência e Tecnologia Animal},  author={Chung, TH},  year={2017},  month={Oct},  pages={733–736} }