%0 Journal Article
%T Dynamic changes of nitrogen forms in livestock manure during composting and relevant evaluation indices of compost maturity<br>畜禽粪便堆肥过程中各种氮化合物的动态变化及腐熟度评价指标
%A BAO Yan-yu
%A ZHOU Qi-xing
%A YAN Li
%A GUAN Lian-zhu
%A <br>鲍艳宇
%J 应用生态学报
%D 2008
%I 
%X In this paper,the dynamic changes of nitrogen(N) forms in different livestock manures were investigated during composting,and the relevant N evaluation indices of compost maturity were approached.The results indicated that during composting,the total nitrogen(TN) concentration in dairy cattle manure increased first and became steady then,but in other five test manures,it decreased first and became steady then.For all test manures,their hydrolizable nitrogen(HN) decreased after an initial increase,NH4 -N decreased first and became steady then,while NO3--N had a persistent increase.Among the N indices of compost maturity,HN/TN and NH4 -N/TN could be selected as the adaptable parameters to evaluate the maturity,while NO3--N/TN could be only used as a universal one.According to the required standard of compost maturity based on the comprehensive index GI(seed germination index),i.e.,GI>0.50,it was suggested that for the livestock manures except young pig manure,the basic requirements of their compost maturity were HN/TN <20.77%,NH4 -N/TN <10.06%,and NO3--N/TN>0.38%.
%K livestock manure
%K composting
%K nitrogen form
%K compost maturity index<br>畜禽粪便
%K 堆肥
%K 氮素形态
%K 腐熟度指标
%K 畜禽粪便
%K 堆肥过程
%K 含氮化合物
%K 态变化
%K 腐熟度指标
%K 评价指标
%K maturity
%K composting
%K evaluation
%K indices
%K during
%K manure
%K livestock
%K nitrogen
%K forms
%K changes
%K 猪粪
%K 标准
%K 优选指标
%K 程度
%K 持续增加
%K 碱解
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=FF29CC5C4955985D77AC0C5AB754B70F&yid=67289AFF6305E306&vid=2A8D03AD8076A2E3&iid=0B39A22176CE99FB&sid=5F8BAECF36EB55E2&eid=A7AE820C12CC9AD3&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=1&reference_num=27