Nitrogen Transformation in Composting of Spent Mushroom Dreg and Cow Manure
[1]GUO Xiali,ZHANG Jingxiao,WANG Jing,et al.Nitrogen Transformation in Composting of Spent Mushroom Dreg and Cow Manure[J].Journal of Zhengzhou University (Engineering Science),2012,33(01):71-74.[doi:10.3969/j.issn.1671-6833.2012.01.018]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
33
Number of periods:
2012 01
Page number:
71-74
Column:
Public date:
2012-01-10
- Title:
- Nitrogen Transformation in Composting of Spent Mushroom Dreg and Cow Manure
- CLC:
- X712
- Abstract:
- The composting experiment was conducted using spent mushroom dreg and cow dung. lts object wasto investigate the elfect of the different raw material proportions and two kinds of amendment of matured com.post and composite cellulose-degrading microbe on nitrogen trangformation during spent mushroom dreg com-posting. The samples were taken for the determination of the nitrogen morphology in the different compostingstages. The results showed that the NH,-N content in all samples inereased in the primary period, then de.creased in the decomposed period of composting. While the content of NO,-N had the opposite trend with theNH,-N content. At the end of composting, the NH,-N content declined significantly with spent mushroom dreginereasing, but the NO,-N content increased obviously with spent mushroom dreg inereasing. Both organic ni-trogen and total nitrogen decreased significantly with spent mushroom dreg increasing. The organic nitrogen in-creased by 35%6 and 47%6 , respectively , in the treatments with matured compost and composite cellulose-de-grading microbe. Meanwhile, the total nitrogen increased by 28%6 and 41% , respectively. These results dem.onstrated that the inoculation of microbe would be beneficial to the formation of the organic nirogen in themushroom dreg composting.
- References:
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Last Update:
1900-01-01
