除氨菌系对牛粪堆肥氮素转化的影响

为了减轻牛粪堆肥过程中NH3释放对环境的污染及氮素损失,在牛粪堆肥时添加除氨菌系,研究其对氮素形态转化的影响。加除氨菌系处理的NH4+-N、NH3较对照分别降低20.47%和61.21%,全氮、NO3--N较对照分别提高11.63%和65.01%,酸解有机氮、氨基酸态氮、酰胺态氮和氨基糖态氮含量分别提高12.42%、11.26%、16.92%和19.51%。表明除氨菌系在牛粪堆肥过程中,能够固定NH4+-N向有机氮各组分转化,减少NH3挥发,具有较好的保氮作用。

Ammonia removal microorganism's effects on nitrogen transformation of cattle manure composting

To alleviate the pollution of NH3 emissions and the loss of nitrogen during cattle manure composting,composite strains of ammonia removal were inoculated during cattle manure composting to analyse its effects on nitrogen transformation.The results showed that NH+4-N,NH3decreased by 20.47% and 61.21% respectively.Total nitrogen,NO-3-N increased by 11.63% and 65.01% respectively.Organic nitrogen,amino acid nitrogen,amide nitrogen and amino sugar nitrogen increased by 12.42%,11.26%,16.92% and 19.51% respectively.It comes to the conclusion that composite strains of ammonia removal could immobilize NH+4-N for the further transformation to other organic nitrogen components and reduce volatilization of NH3,thus composite strains of ammonia removal proves to be good inhibitor of nitrogen losses.