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室内25℃条件下,于存在硝态氮累积、50%田间持水量的设施蔬菜地土壤中,分别添加含碳量为0、0.5、1.0、1.5克/千克的活性碳源葡萄糖,研究活性碳用量对土壤硝态氮及其氮氧化物气体NO、N_2O(含量均以氮计)的影响。结果表明,培养16天,无添加活性碳源土壤铵态氮、硝态氮含量相对稳定,添加0.5、1.0、1.5克/千克活性碳源的土壤硝态氮含量均由初始870毫克/千克降至10毫克/千克以下,且葡萄糖用量越高,硝态氮下降越快;培养16天后,0.5、
Indoor 25 ℃ under the conditions, in the presence of nitrate accumulation, 50% field water retention capacity of vegetables in the soil were added carbon content of 0,0.5,1.0,1.5 g / kg of active carbon source glucose, activated carbon The effect of dosage on soil NO3 - N and NO2 - N2O (nitrogen content). The results showed that the content of nitrate nitrogen in the soil without activated carbon source was relatively stable after 16 days cultivation. The content of nitrate nitrogen in the soil supplemented with 0.5, 1.0 and 1.5 g / kg activated carbon source increased from the initial 870 mg / kg To 10 mg / kg or less, and the higher the amount of glucose, nitrate nitrogen decreased faster; after 16 days of culture, 0.5,