不同比例玫瑰废弃物与小桐子油枯对高温堆肥过程中氮素变化的影响

Effects of Different ratios of Rose Residue and Jatropha Curcas Oil Dry on Dynamic Changes of Nitrogen during High-Temperature Composting

以小桐子油枯为基本原料进行高温堆肥试验,研究了不同比例玫瑰废弃物与小桐子油枯(1∶1,1∶2,1∶5)混合堆肥体系中温度、总氮(TN)、水溶性NH4+-N,水溶性NO3--N和游离氨基酸的动态变化规律。结果表明,纯小桐子油枯(对照)的NH4+-N,NO3--N,游离氨基酸在堆肥进程中的浓度最高,以配比1∶5,1∶2,1∶1的顺序浓度依次增加。适当加入玫瑰废弃物(1∶5),能使TN损失最少,也能增加一定的NH4+-N,NO3--N,游离氨基酸浓度。

The dynamic changes of total nitrogen（TN）,soluble NH＋4-N,soluble NO-3-N,free amino acid in composting by different ratios of rose residue and Jatropha curcas oil dry（1∶1,1∶2,1∶5）,and control test of pure J.curcas oil dry were studied.The result showed that,control test of J.curcas oil dry was propitious to enhance the concentration of soluble NH＋4-N,soluble NO-3-N,free amino acid in composting.The concentration were increased in ratios of 1∶5,1∶2,1∶1 gradually.Adding rose residuce to J.curcas oil dry compost（1∶5） also increased the concentration of soluble NH＋4-N,soluble NO-3-N,free amino acid and reduced the total nitrogen（TN） loss.