The results show that the releases of ammonium and nitrate nitrogen lower in exponential model, under the conditions of water washing;
结果表明，在水冲洗条件下硝酸根和铵根的释放质量浓度呈一阶指数方程降低；
This paper reports the effect of DCD in seedling stage to soil microorganism of bacteria, mold and actinomycetes, and the concentration changes of both ammonium nitrogen and nitrate nitrogen in soil.
实验研究了双氰胺在玉米苗期对土壤微生物细菌、霉菌和放线菌的影响，及对土壤中铵态氮和硝态氮贮量变化的影响。
Regress the load of nitrate, ammonium and total nitrogen by MQ equation.
对硝氮、氨氮、总氮产污负荷进行MQ回归，提炼回归方程。
The mycelia well utilized yeast meal and peptone, but not very well nitrate nitrogen and ammonium nitrogen.
在对氮源的利用上，供试香灰菌株对酵母粉、麸皮和蛋白胨的利用较好，对硝态氮和铵态氮的利用较差。
The experiment and theory all indicates that the effect of ammonium salt as the degumming nitrogen additive is better than the effect of nitrate as the degumming nitrogen additive.
试验和理论都表明，以铵盐作为含氮添加剂的脱胶效果要好于以硝酸盐作为含氮添加剂的脱胶效果。
The results indicated that adding DCD significantly increased ammonium content and decreased nitrate nitrogen content at the same time.
赤红壤中添加DCD在同一培养时间均能显著降低土壤较高的铵态氮含量，提高硝态氮含量。
In a vertical filter made up of sand and gravel more than 80 % of the total nitrogen at 50 cm ground depth consists of nitrate, whereas only roughly 10 % consist of ammonium.
垂直过滤系统由沙、卵石组成，在离地面50厘米的区域，氮主要以硝酸盐的形式存在(80 %)，大约只有10%的氮是以铵的形式存在。
Ammonium and nitrate are used as nitrogen sources by this bacterium.
通过使用鼠李糖作为碳源的能力与固氮菌属中其它成员区别。
Ammonium and nitrate are used as nitrogen sources by this bacterium.
通过使用鼠李糖作为碳源的能力与固氮菌属中其它成员区别。
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