Compared with the previous crop type of soybean, rice planting in the previous season accelerated soilnitrification-denitrification rate in the following wheat season.
与前茬种植大豆相比，前茬作物水稻促进了后季麦田土壤硝化-反硝化作用。
2
Isotope dilution method was adopted in lab for the study of the effect of crude oil contamination on the rate of nitrogen mineralization and nitrification in soil.
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。
3
Heterotrophic nitrification might be present in the tested soil.