Tobacco is an important economic crop, and nitrogen is essential mineral element. Studies on carbon and nitrogenous metabolism of tobacco have important action on tobacco production.
烟草是中国一种重要的经济作物，而氮是植物必需的矿质养分，研究烟草碳氮代谢规律，对指导烟草的生产具有重要的作用。
Sufficient nitrogen supply during grain filling period promoted kernel growth by improving carbon-nitrogen metabolism and sink activity of kernels.
整个灌浆期氮素供应充足提高了籽粒库活性和碳氮代谢水平，促进了籽粒库容建成和库充实；
Oxygen in short supply makes metabolism of carbon and nitrogen weak, which is unfavourable to synthesis of penicillin.
一旦反应器供氧不足，菌体碳、氮源代谢能力减弱，不利于青霉素合成。
According to the research of the accumulation of dry matter and carbon-nitrogen metabolism which are affected by the ratio between basal fertilizer and top-dressing, the results show that, 1.
通过对不同基追肥比例对烤烟干物质累积和碳氮代谢的影响研究，结果表明：1。
However, the basis of its physiological function that may alter the rate of nitrogen assimilation and carbon metabolism within the context of metabolic networks remains unclear.
但是在代谢网络背景下，其在改变氮同化和碳代谢中的生理功能还不是很清楚。
Using potted Hanfu apple as materials, carbon and nitrogen substance metabolism of Hanfu apple under different water stress was studied.
以盆栽“寒富”苹果为试材，研究了不同水分胁迫处理对“寒富”苹果碳氮代谢的影响。
Yield and the quality formation of the high starch maize is closely related to dry matter accumulation, the nutrient uptake, carbon and nitrogen metabolism, and the grain sugar and starch formation.
高淀粉玉米产量和品质的形成与干物质积累、养分吸收、碳氮代谢、籽粒库的糖分与淀粉形成关系密切。
All these showed that the intensity of carbon and nitrogen metabolism strengthened in root system because massive carbon and nitrogen compounds transported to root system after topping.
由上可知，打顶后大量的含碳、氮化合物运输到根系中，根系中碳氮代谢强度增大。
All these showed that the intensity of carbon and nitrogen metabolism strengthened in root system because massive carbon and nitrogen compounds transported to root system after topping.
由上可知，打顶后大量的含碳、氮化合物运输到根系中，根系中碳氮代谢强度增大。
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