Опубликована: Янв. 1, 2023

The accurate estimation of nitrogen (N) and carbon (C) emissions from manures is vital to reduce environmental pressures agriculture. Existing models methods that calculate gaseous often overlook the variations between manures. Consequently, commonly accepted emission factors for ammonia (NH3), methane (CH4), nitrous oxide (N2O), dioxide (CO2) lack precision. We hypothesized variation in slurry manure properties significantly affects N C emissions. conducted a comprehensive mesocosm study with 50 different dairy slurries under controlled conditions. primary objective was understand relation composition used gas monitoring statistical analyses reveal relationship Both cattle direct NH3 CH4 these varied strongly. Multiple linear regression showed pH total ammoniacal content (TAN) were main controlling slurry, while inherent dictated after soil application. pH, contents TAN, organic N, dry matter related N2O injected into soil, water input showing significant effects surface results this indicate as inventories, farm management tools, can be improved by incorporation other readily accessible information, such TAN content, C/N ratio content. Moreover insights measured, creates room reduction practice.

Язык: Английский