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- While the nitrogen concentration was 2 mg/ L,this effect was no significant different between the periphyton and phytoplankton. 而当氮浓度较低时(2 mg/L),浮游藻类与附着藻类对N/P的响应则没有显著的差异;
- The nitrogen concentration and nitrifying bacteria in the soils treated with 30% organic matter or traditional fertilization were higher than those in the other soils. 施用30%25有机肥和习惯施肥处理的氮素养分和硝化细菌数量较多,硝化细菌数量与有机质含量也无相关;
- The nitrogen concentration and nitrifying bacteria in the soils treated with 30% organic matter or traditional fertilization were higher than the other soils. 施用30%25有机肥和习惯施肥处理的氮素养分和硝化细菌数量较多,硝化细菌数量也不与有机质含量相关;
- Change of phosphorus and nitrogen concentration in the leakage loss. 渗漏流失氮磷浓度的变化。
- It was also found that the nitrogen and phospho... 与主要作物相比,水葫芦对氮与磷素营养的吸收能力较强。
- the nitrogen concentration 氮气流量
- The plants keep the nitrogen in their roots,legum . 植物将氮气保存在他们的根部。
- Higher triacylglyceride content in the lipid was observed at low nitrogen concentration. 在低氮源浓度下,油脂中三酸甘油脂之含量较高。
- One atom of oxygen is linked to the nitrogen atom by a double bond. 一个氧原子以双键与氮原子相连。
- Cumulative removal ratio of nitrogen was closely related with nitrogen concentration,working time and biomass of periphyton. 附着生物对水柱中氮的累积去除率和水柱中氮的浓度、附着生物的生物量以及附着生物作用时间密切相关。
- Isoxazole, an analog with the nitrogen atom in position 2. 异-{恶唑}-,氮在2位的类似物。
- Abstract: CH3Cl is usually used as microbe activity inhibiter in soil system for nitrogen concentration variation study. 摘要:氯仿是土壤的营养物释放实验中常用的微生物活性抑制剂。
- Results indicate that the optical band gap of the CN x films is decreased with the increasing nitrogen concentration, accompanied with the reflectance increase of the films. 结果表明:随着薄膜中氮含量的增加,碳氮薄膜的光学禁带宽度减小,红外反射率增加。
- Nitrogen release characteristic of Dianchi lake sediment and the nitrogen nutrients concentration of overlying water body was studied through simulating cultivation. 通过模拟培养,研究了底泥氮营养的释放及上覆水体中氮营养的浓度变化特征。
- A Research on the Nitrogen and Phosphorus Requirement of Thalassiosira sp. 对氮磷需求量的研究。
- The nitrogen and potassium uptake characters of zhongyou 752 were studied. 摘要对超级稻中优752的氮、钾吸收特性进行了研究。
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
- The nitrogen atoms combine instantaneously, simultaneously and spontaneously. 氮原子瞬间同时自动化合。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。