①若测定吸光值超出标准吸光值线性范围:高于最高值建议适当扩大上清液稀释倍数后再进行测定,低于最低值建议适当增加样本量后再进行测定,计算时相应修改;
②显色完成后应在1 h内完成测定,测定组颜色应为蓝色(与标准组颜色一致),若显色为黄色或绿色,则表明NH3-N浓度过高,调整样本量或上清稀释液稀释倍数后再进行测定,计算时相应修改;
③无土样组为基质自分解对照组,测定组上清液稀释倍数不变则无土样组只需测定1-2次,若改变上清液稀释倍数则需要重新测定无土样组1-2次(稀释倍数一致);
[1] Jiang M, Ye F, Liu F, et al. Rhizosphere melatonin application reprograms nitrogen-cycling related microorganisms to modulate low temperature response in barley[J]. Frontiers in Plant Science, 2022, 13: 998861.(IF 6.627)
[2] Du Y, Zhang Q, Yu M, et al. Effect of sodium alginate–gelatin–polyvinyl pyrrolidone microspheres on cucumber plants, soil, and microbial communities under lead stress[J]. International Journal of Biological Macromolecules, 2023, 247: 125688.(IF 8.2)
[3] Huang B, Chen Y, Pei Z, et al. Application of microbial organic fertilizers promotes the utilization of nutrients and restoration of microbial community structure and function in rhizosphere soils after dazomet fumigation[J]. Frontiers in Microbiology, 2023, 13: 1122611.(IF 5.2)
[4] Zhang X, Song Y, Yang X, et al. Regulation of soil enzyme activity and bacterial communities by food waste compost application during field tobacco cultivation cycle[J]. Applied Soil Ecology, 2023, 192: 105016.(IF 4.8)
[5] Wen X, Zhou J, Zheng S, et al. Geochemical properties, heavy metals and soil microbial community during revegetation process in a production Pb-Zn tailings[J]. Journal of Hazardous Materials, 2024, 463: 132809.(IF 13.6)
[6] Li Q, Zhang X, Zheng J, et al. Phase transformation of Cr (VI) host-mineral driven by citric acid-aided mechanochemical approach for advanced remediation of chromium ore processing residue-contaminated soil[J]. Journal of Hazardous Materials, 2024, 461: 132530.(IF 13.6)