Ammonia volatilization from manure mixed with biochar

Ammonia (NH 3 ) volatilization from NH -based fertilizer and animal manure reduces their nitrogen (N) value is a source of environmental pollution. Mixing with biochar may lower by adding H + , adsorbing mineral N, or increasing N immobilization in microbial biomass. The objective this study was to determine whether wood-based could vented pails containing (liquid swine, dairy slurry, solid poultry manure) urea ammonium nitrate solution (UAN). Two types (BlueLeaf Dynamotive) were mixed three UAN at 0, 2.5, 5, 10, 25% volume pails. After 21 d storage an outdoor shaded area, the greatest manure, which had pH 9.4 on average low water content regardless application rate. There less when (v/v) Dynamotive compared 0%–10% (%) biochar, probably because decreased 7.0 6.4 after contact. no impact volatilization, suggesting that these sources did not appreciably change dynamics stored d.