废弃烟末高温堆肥中氮变化研究*

 以废弃烟末为原料进行高温堆肥试验,在添加不同微生物菌剂的条件下,采用好氧人工翻堆堆肥方式,研究了烟末高温堆肥过程中全氮(T-N),可溶性NH₄⁺-N,可溶性NO₃^--N随时间的变化规律。结果表明,烟末单独堆肥,升温慢,高温分解阶段时间短,全氮(T-N)损失大,NH₄⁺-N向NO₃^--N转化量少,不宜单独堆肥；在烟末堆肥中加入微生物菌剂能缩短进入高温分解阶段的时间,减少全氮（T-N）的损失,促进NH₄⁺-N向NO₃^--N的转化,加快了烟末堆肥化进程。

Dynamic Changes of Nitrogen in Composting Tobacco Fines with High Temperature

Tabacco fines,an industry waste,were composted with high temperature and different microbial agents. The dynamic changes of total nitrogen (T-N),soluble NH₄⁺-N and soluble NO₃^--N were studied. The results showed that a slower temperature increase,shorter high-temperature decomposing period,larger T-N loss and less transforming from NH₄⁺-N to NO₃^--N were found in the composting. The microbial agents (Faby,Rongfeng and Dingzhi) could shorten the time of reaching high temperature,reduce the T-N loss,enhance the transforming from NH₄⁺-N to NO₃^--N and accelerate the composting process of tobacco fines.