Isotope dilution method was adopted in lab for the study of the effect of crude oil contamination on the rate of nitrogen mineralization and nitrificationinsoil.
在实验室中用同位素示踪法，研究了土壤中不同石油污染量对氮矿化及硝化速率的影响。
2
In addition, by comparing the effect of UYJ to that of UJ, it could be speculated that the microbial agent inhibited nitrification insignificantly in tea garden soil with rich organic matter.
此外，比较UY J和UJ处理结果可以推测：在有机质丰富的茶园中施用菌剂来抑制硝化作用的效果不显著。
3
The maximum nitrification ratio of fertilizer N insoil is up to 20%-42%, according to the soil fertility and rate of fertilizer N applied.