Using Anhydrous Aluminum Chloride with Calcium Carbonate to Reduce Ammonia Volatilization and Increase Nitrogen Content from Poultry Litter

This study evaluated the effects of a blend of anhydrous aluminum chloride and calcium carbonate on poultry litter properties, such as pH, NH3 emissions, and nitrogen (N) content, over a 4-week period. The chemical treatment agents used in this study were added to the poultry litter, with rice hulls at a rate of 40 g aluminum chloride＋60 g calcium carbonate/kg litter and mixed into the upper 1 cm of litter; untreated poultry litter acted as the control. When a combination of anhydrous AlCl3 and CaCO3 was used as an additive, NH3 emissions were significantly reduced (P