含氮物质 meaning in English

nitrogen substance
nitrogen-containing material
nitrogenous body
nitrogenous substance

Using this product for long term , can efficiently avoid the suffocation of nitrification , promote the cycle of nitrogenous substance , avoid the water quality worsen and purify water quality , reduce the risk of breeding and increase the breeding benefit
长期使用用本品后可有效避免硝化作用受阻、推动含氮物质的循环、避免水质恶化、净化水质降低养殖风险、提高养殖效益。