Abstract Nitrification is believed to be one of the primary processes of N2O emission in the agroecological system. which is controlled by soil microbes and mainly regulated by soil pH. oxygen content and NH4 + availability. Previous studies have proved that the relative contributions of ammonia oxidizing bacteria (AOB) and archaea (AOA) to N2O production were varied with soil pH. https://quarterfoures.shop/product-category/all/