College of Natural Resources and Environment, Northwest Agriculture and Forestry University, Yangling 712100, PR China.
College of Natural Resources and Environment, Northwest Agriculture and Forestry University, Yangling 712100, PR China.
Bioresour Technol. 2020 Jul;307:123236. doi: 10.1016/j.biortech.2020.123236. Epub 2020 Mar 23.
This study aimed to reveal the role of Black Tourmaline (TM) in the humification enhancement and the mechanism of nitrogen transformation during pig manure composting. Results showed that adding TM promoted the maturity and improved the humification degree by 20.13-33.77%. And TM was beneficial for the transformation from NH-N to amino organic nitrogen to fix more nitrogen in compost mass. Then NH and NO volatilization were decreased by 22.88-34.76% and 69.79-87.47% by comparison with the control, and the minimum value in nitrogen loss (26.78%) was observed in the 10% TM blended treatment. Furthermore, through RDA analysis, the protease an upmost contributor to nitrogen transformation. Meanwhile, total organic carbon was dominant factor affected enzymatic activities. Therefore, 10% TM was suggested to reduce nitrogen loss and increase humification in this research. Deeply related research in gene and specific addition amounts of TM will be investigated later.
本研究旨在揭示黑碧玺（TM）在猪粪堆肥中腐殖质增强和氮转化中的作用及机制。结果表明，添加 TM 可促进成熟，并将腐殖化程度提高 20.13-33.77%。TM 有利于 NH-N 向氨基酸有机氮的转化，从而在堆肥质量中固定更多的氮。与对照相比，NH 和 NO 的挥发分别减少了 22.88-34.76%和 69.79-87.47%，在 10% TM 混合处理中观察到氮损失的最小值（26.78%）。此外，通过 RDA 分析，蛋白酶是对氮转化贡献最大的因素。同时，总有机碳是影响酶活性的主要因素。因此，本研究建议添加 10% TM 以减少氮损失并增加腐殖质。以后将进行更深入的基因和 TM 特定添加量相关研究。
